diff --git a/contrib/Makefile b/contrib/Makefile
index 442592d58b1..c9e88be82dd 100644
--- a/contrib/Makefile
+++ b/contrib/Makefile
@@ -1,4 +1,4 @@
-# $Header: /cvsroot/pgsql/contrib/Makefile,v 1.33 2002/07/30 16:32:20 momjian Exp $
+# $Header: /cvsroot/pgsql/contrib/Makefile,v 1.34 2002/07/30 16:40:34 momjian Exp $
subdir = contrib
top_builddir = ..
@@ -20,6 +20,7 @@ WANTED_DIRS = \
intarray \
isbn_issn \
lo \
+ ltree \
miscutil \
noupdate \
oid2name \
diff --git a/contrib/README b/contrib/README
index 3bb28836779..09eca9b70b2 100644
--- a/contrib/README
+++ b/contrib/README
@@ -95,6 +95,10 @@ lo -
Large Object maintenance
by Peter Mount <peter@retep.org.uk>
+ltree -
+ Tree-like data structures
+ by Teodor Sigaev <teodor@stack.net> and Oleg Bartunov <oleg@sai.msu.su>
+
mSQL-interface -
mSQL API translation library
by Aldrin Leal <aldrin@americasnet.com>
diff --git a/contrib/ltree/Makefile b/contrib/ltree/Makefile
new file mode 100644
index 00000000000..d1120a84583
--- /dev/null
+++ b/contrib/ltree/Makefile
@@ -0,0 +1,13 @@
+subdir = contrib/tree
+top_builddir = ../..
+include $(top_builddir)/src/Makefile.global
+
+PG_CPPFLAGS = -DLOWER_NODE
+MODULE_big = ltree
+OBJS = ltree_io.o ltree_op.o lquery_op.o _ltree_op.o crc32.o \
+ ltxtquery_io.o ltxtquery_op.o ltree_gist.o _ltree_gist.o
+DATA_built = ltree.sql
+DOCS = README.ltree
+REGRESS = ltree
+
+include $(top_srcdir)/contrib/contrib-global.mk
diff --git a/contrib/ltree/README.ltree b/contrib/ltree/README.ltree
new file mode 100644
index 00000000000..568704b97fb
--- /dev/null
+++ b/contrib/ltree/README.ltree
@@ -0,0 +1,465 @@
+contrib/ltree module
+
+ltree - is a PostgreSQL contrib module which contains implementation of data
+types, indexed access methods and queries for data organized as a tree-like
+structures.
+This module will works for PostgreSQL version 7.3.
+(patch for 7.2 version is provided, see INSTALLATION)
+-------------------------------------------------------------------------------
+All work was done by Teodor Sigaev (teodor@stack.net) and Oleg Bartunov
+(oleg@sai.msu.su). See http://www.sai.msu.su/~megera/postgres/gist for
+additional information. Authors would like to thank Eugeny Rodichev for helpful
+discussions. Comments and bug reports are welcome.
+-------------------------------------------------------------------------------
+
+LEGAL NOTICES: This module is released under BSD license (as PostgreSQL
+itself). This work was done in framework of Russian Scientific Network and
+partially supported by Russian Foundation for Basic Research and Stack Group.
+-------------------------------------------------------------------------------
+
+MOTIVATION
+
+This is a placeholder for introduction to the problem. Hope, people reading
+this document doesn't need it too much :-)
+
+DEFINITIONS
+
+A label of a node is a sequence of one or more words separated by blank
+character '_' and containing letters and digits ( for example, [a-zA-Z0-9] for
+C locale). The length of a label is limited by 256 bytes.
+
+Example: 'Countries', 'Personal_Services'
+
+A label path of a node is a sequence of one or more dot-separated labels
+l1.l2...ln, represents path from root to the node. The length of a label path
+is limited by 65Kb, but size <= 2Kb is preferrable. We consider it's not a
+strict limitation ( maximal size of label path for DMOZ catalogue - http://
+www.dmoz.org, is about 240 bytes !)
+
+Example: 'Top.Countries.Europe.Russia'
+
+We introduce several datatypes:
+
+ltree
+ - is a datatype for label path.
+
+ltree[]
+ - is a datatype for arrays of ltree.
+
+lquery
+ - is a path expression that has regular expression in the label path and
+ used for ltree matching. Star symbol (*) is used to specify any number of
+ labels (levels) and could be used at the beginning and the end of lquery,
+ for example, '*.Europe.*'.
+
+ The following quantifiers are recognized for '*' (like in Perl):
+
+ {n} Match exactly n levels
+ {n,} Match at least n levels
+ {n,m} Match at least n but not more than m levels
+ {,m} Match at maximum m levels (eq. to {0,m})
+
+ It is possible to use several modifiers at the end of a label:
+
+
+ @ Do case-insensitive label matching
+ * Do prefix matching for a label
+ % Don't account word separator '_' in label matching, that is
+ 'Russian%' would match 'Russian_nations', but not 'Russian'
+
+ lquery could contains logical '!' (NOT) at the beginning of the label and '
+ |' (OR) to specify possible alternatives for label matching.
+
+ Example of lquery:
+
+
+ Top.*{0,2}.sport*@.!football|tennis.Russ*|Spain
+ a) b) c) d) e)
+
+ A label path should
+ + a) begins from a node with label 'Top'
+ + b) and following zero or 2 labels until
+ + c) a node with label beginning from case-insensitive prefix 'sport'
+ + d) following node with label not matched 'football' or 'tennis' and
+ + e) ends on node with label beginning from 'Russ' or strictly matched
+ 'Spain'.
+
+ltxtquery
+ - is a datatype for label searching (like type 'query' for full text
+ searching, see contrib/tsearch). It's possible to use modifiers @,%,* at
+ the end of word. The meaning of modifiers are the same as for lquery.
+
+ Example: 'Europe & Russia*@ & !Transportation'
+
+ Search paths contain words 'Europe' and 'Russia*' (case-insensitive) and
+ not 'Transportation'. Notice, the order of words as they appear in label
+ path is not important !
+
+OPERATIONS
+
+The following operations are defined for type ltree:
+
+<,>,<=,>=,=, <>
+ - have their usual meanings. Comparison is doing in the order of direct
+ tree traversing, children of a node are sorted lexicographic.
+ltree @> ltree
+ - returns TRUE if left argument is an ancestor of right argument (or
+ equal).
+ltree <@ ltree
+ - returns TRUE if left argument is a descendant of right argument (or
+ equal).
+ltree ~ lquery, lquery ~ ltree
+ - return TRUE if node represented by ltree satisfies lquery.
+ltree @ ltxtquery, ltxtquery @ ltree
+ - return TRUE if node represented by ltree satisfies ltxtquery.
+ltree || ltree, ltree || text, text || ltree
+ - return concatenated ltree.
+
+Operations for arrays of ltree (ltree[]):
+
+ltree[] @> ltree, ltree <@ ltree[]
+ - returns TRUE if array ltree[] contains an ancestor of ltree.
+ltree @> ltree[], ltree[] <@ ltree
+ - returns TRUE if array ltree[] contains a descendant of ltree.
+ltree[] ~ lquery, lquery ~ ltree[]
+ - returns TRUE if array ltree[] contains label paths matched lquery.
+ltree[] @ ltxtquery, ltxtquery @ ltree[]
+ - returns TRUE if array ltree[] contains label paths matched ltxtquery
+ (full text search).
+ltree[] ?@> ltree, ltree ?<@ ltree[], ltree[] ?~ lquery, ltree[] ?@ ltxtquery
+ - returns first element of array ltree[] satisfies corresponding condition
+ and NULL in vice versa.
+
+REMARK
+
+Operations <@, @>, @ and ~ have analogues - ^<@, ^@>, ^@, ^~, which doesn't use
+indices !
+
+INDICES
+
+Various indices could be created to speed up execution of operations:
+
+ * B-tree index over ltree:
+ <, <=, =, =>, >
+ * GiST index over ltree:
+ <, <=, =, =>, >, @>, <@, @, ~
+ Example:
+ create index path_gist_idx on test using gist_ltree_ops (path);
+ * GiST index over ltree[]:
+ ltree[]<@ ltree, ltree @> ltree[], @, ~.
+ Example:
+ create index path_gist_idx on test using gist__ltree_ops (array_path);
+ Notices: This index is lossy.
+
+FUNCTIONS
+
+ltree subltree
+ ltree subltree(ltree, start, end)
+ returns subpath of ltree from start (inclusive) until the end.
+ # select subltree('Top.Child1.Child2',1,2);
+ subltree
+ --------
+ Child1
+ltree subpath
+ ltree subpath(ltree, OFFSET,LEN)
+ ltree subpath(ltree, OFFSET)
+ returns subpath of ltree from OFFSET (inclusive) with length LEN.
+ If OFFSET is negative returns subpath starts that far from the end
+ of the path. If LENGTH is omitted, returns everything to the end
+ of the path. If LENGTH is negative, leaves that many labels off
+ the end of the path.
+ # select subpath('Top.Child1.Child2',1,2);
+ subpath
+ -------
+ Child1.Child2
+
+ # select subpath('Top.Child1.Child2',-2,1);
+ subpath
+ ---------
+ Child1
+int4 nlevel
+
+ int4 nlevel(ltree) - returns level of the node.
+ # select nlevel('Top.Child1.Child2');
+ nlevel
+ --------
+ 3
+
+Note, that arguments start, end, OFFSET, LEN have meaning of level of the node
+!
+
+INSTALLATION
+
+ cd contrib/ltree
+ make
+ make install
+ make installcheck
+
+for 7.2 one needs to apply patch ( patch < patch.72) before installation !
+
+EXAMPLE OF USAGE
+
+ createdb ltreetest
+ psql ltreetest < /usr/local/pgsql/share/contrib/ltree.sql
+ psql ltreetest < ltreetest.sql
+
+Now, we have a database ltreetest populated with a data describing hierarchy
+shown below:
+
+
+ TOP
+ / | \
+ Science Hobbies Collections
+ / | \
+ Astronomy Amateurs_Astronomy Pictures
+ / \ |
+ Astrophysics Cosmology Astronomy
+ / | \
+ Galaxies Stars Astronauts
+
+Inheritance:
+
+ltreetest=# select path from test where path <@ 'Top.Science';
+ path
+------------------------------------
+ Top.Science
+ Top.Science.Astronomy
+ Top.Science.Astronomy.Astrophysics
+ Top.Science.Astronomy.Cosmology
+(4 rows)
+
+Matching:
+
+ltreetest=# select path from test where path ~ '*.Astronomy.*';
+ path
+-----------------------------------------------
+ Top.Science.Astronomy
+ Top.Science.Astronomy.Astrophysics
+ Top.Science.Astronomy.Cosmology
+ Top.Collections.Pictures.Astronomy
+ Top.Collections.Pictures.Astronomy.Stars
+ Top.Collections.Pictures.Astronomy.Galaxies
+ Top.Collections.Pictures.Astronomy.Astronauts
+(7 rows)
+ltreetest=# select path from test where path ~ '*.!pictures@.*.Astronomy.*';
+ path
+------------------------------------
+ Top.Science.Astronomy
+ Top.Science.Astronomy.Astrophysics
+ Top.Science.Astronomy.Cosmology
+(3 rows)
+
+Full text search:
+
+ltreetest=# select path from test where path @ 'Astro*% & !pictures@';
+ path
+------------------------------------
+ Top.Science.Astronomy
+ Top.Science.Astronomy.Astrophysics
+ Top.Science.Astronomy.Cosmology
+ Top.Hobbies.Amateurs_Astronomy
+(4 rows)
+
+ltreetest=# select path from test where path @ 'Astro* & !pictures@';
+ path
+------------------------------------
+ Top.Science.Astronomy
+ Top.Science.Astronomy.Astrophysics
+ Top.Science.Astronomy.Cosmology
+(3 rows)
+
+Using Functions:
+
+ltreetest=# select subpath(path,0,2)||'Space'||subpath(path,2) from test where path <@ 'Top.Science.Astronomy';
+ ?column?
+------------------------------------------
+ Top.Science.Space.Astronomy
+ Top.Science.Space.Astronomy.Astrophysics
+ Top.Science.Space.Astronomy.Cosmology
+(3 rows)
+We could create SQL-function:
+CREATE FUNCTION ins_label(ltree, int4, text) RETURNS ltree
+AS 'select subpath($1,0,$2) || $3 || subpath($1,$2);'
+LANGUAGE SQL WITH (ISCACHABLE);
+
+and previous select could be rewritten as:
+
+ltreetest=# select ins_label(path,2,'Space') from test where path <@ 'Top.Science.Astronomy';
+ ins_label
+------------------------------------------
+ Top.Science.Space.Astronomy
+ Top.Science.Space.Astronomy.Astrophysics
+ Top.Science.Space.Astronomy.Cosmology
+(3 rows)
+
+Or with another arguments:
+
+CREATE FUNCTION ins_label(ltree, ltree, text) RETURNS ltree
+AS 'select subpath($1,0,nlevel($2)) || $3 || subpath($1,nlevel($2));'
+LANGUAGE SQL WITH (ISCACHABLE);
+
+ltreetest=# select ins_label(path,'Top.Science'::ltree,'Space') from test where path <@ 'Top.Science.Astronomy';
+ ins_label
+------------------------------------------
+ Top.Science.Space.Astronomy
+ Top.Science.Space.Astronomy.Astrophysics
+ Top.Science.Space.Astronomy.Cosmology
+(3 rows)
+
+ADDITIONAL DATA
+
+To get more feeling from our ltree module you could download
+dmozltree-eng.sql.gz (about 3Mb tar.gz archive containing 300,274 nodes),
+available from http://www.sai.msu.su/~megera/postgres/gist/ltree/
+dmozltree-eng.sql.gz, which is DMOZ catalogue, prepared for use with ltree.
+Setup your test database (dmoz), load ltree module and issue command:
+
+zcat dmozltree-eng.sql.gz| psql dmoz
+
+Data will be loaded into database dmoz and all indices will be created.
+
+BENCHMARKS
+
+All runs were performed on my IBM ThinkPad T21 (256 MB RAM, 750Mhz) using DMOZ
+data, containing 300,274 nodes (see above for download link). We used some
+basic queries typical for walking through catalog.
+
+QUERIES
+
+ * Q0: Count all rows (sort of base time for comparison)
+ select count(*) from dmoz;
+ count
+ --------
+ 300274
+ (1 row)
+ * Q1: Get direct children (without inheritance)
+ select path from dmoz where path ~ 'Top.Adult.Arts.Animation.*{1}';
+ path
+ -----------------------------------
+ Top.Adult.Arts.Animation.Cartoons
+ Top.Adult.Arts.Animation.Anime
+ (2 rows)
+ * Q2: The same as Q1 but with counting of successors
+ select path as parentpath , (select count(*)-1 from dmoz where path <@
+ p.path) as count from dmoz p where path ~ 'Top.Adult.Arts.Animation.*{1}';
+ parentpath | count
+ -----------------------------------+-------
+ Top.Adult.Arts.Animation.Cartoons | 2
+ Top.Adult.Arts.Animation.Anime | 61
+ (2 rows)
+ * Q3: Get all parents
+ select path from dmoz where path @> 'Top.Adult.Arts.Animation' order by
+ path asc;
+ path
+ --------------------------
+ Top
+ Top.Adult
+ Top.Adult.Arts
+ Top.Adult.Arts.Animation
+ (4 rows)
+ * Q4: Get all parents with counting of children
+ select path, (select count(*)-1 from dmoz where path <@ p.path) as count
+ from dmoz p where path @> 'Top.Adult.Arts.Animation' order by path asc;
+ path | count
+ --------------------------+--------
+ Top | 300273
+ Top.Adult | 4913
+ Top.Adult.Arts | 339
+ Top.Adult.Arts.Animation | 65
+ (4 rows)
+ * Q5: Get all children with levels
+ select path, nlevel(path) - nlevel('Top.Adult.Arts.Animation') as level
+ from dmoz where path ~ 'Top.Adult.Arts.Animation.*{1,2}' order by path asc;
+ path | level
+ ------------------------------------------------+-------
+ Top.Adult.Arts.Animation.Anime | 1
+ Top.Adult.Arts.Animation.Anime.Fan_Works | 2
+ Top.Adult.Arts.Animation.Anime.Games | 2
+ Top.Adult.Arts.Animation.Anime.Genres | 2
+ Top.Adult.Arts.Animation.Anime.Image_Galleries | 2
+ Top.Adult.Arts.Animation.Anime.Multimedia | 2
+ Top.Adult.Arts.Animation.Anime.Resources | 2
+ Top.Adult.Arts.Animation.Anime.Titles | 2
+ Top.Adult.Arts.Animation.Cartoons | 1
+ Top.Adult.Arts.Animation.Cartoons.AVS | 2
+ Top.Adult.Arts.Animation.Cartoons.Members | 2
+ (11 rows)
+
+Timings
+
++---------------------------------------------+
+|Query|Rows|Time (ms) index|Time (ms) no index|
+|-----+----+---------------+------------------|
+| Q0| 1| NA| 1453.44|
+|-----+----+---------------+------------------|
+| Q1| 2| 0.49| 1001.54|
+|-----+----+---------------+------------------|
+| Q2| 2| 1.48| 3009.39|
+|-----+----+---------------+------------------|
+| Q3| 4| 0.55| 906.98|
+|-----+----+---------------+------------------|
+| Q4| 4| 24385.07| 4951.91|
+|-----+----+---------------+------------------|
+| Q5| 11| 0.85| 1003.23|
++---------------------------------------------+
+Timings without indices were obtained using operations which doesn't use
+indices (see above)
+
+Remarks
+
+We didn't run full-scale tests, also we didn't present (yet) data for
+operations with arrays of ltree (ltree[]) and full text searching. We'll
+appreciate your input. So far, below some (rather obvious) results:
+
+ * Indices does help execution of queries
+ * Q4 performs bad because one needs to read almost all data from the HDD
+
+CHANGES
+
+July 13, 2002
+ Initial release.
+
+TODO
+
+ * Testing on 64-bit platforms. There are several known problems with byte
+ alignment;
+ * Better documentation;
+ * We plan (probably) to improve regular expressions processing using
+ non-deterministic automata;
+ * Some sort of XML support;
+ * Better full text searching;
+
+SOME BACKGROUNDS
+
+The approach we use for ltree is much like one we used in our other GiST based
+contrib modules (intarray, tsearch, tree, btree_gist, rtree_gist). Theoretical
+background is available in papers referenced from our GiST development page
+(http://www.sai.msu.su/~megera/postgres/gist).
+
+A hierarchical data structure (tree) is a set of nodes. Each node has a
+signature (LPS) of a fixed size, which is a hashed label path of that node.
+Traversing a tree we could *certainly* prune branches if
+
+LQS (bitwise AND) LPS != LQS
+
+where LQS is a signature of lquery or ltxtquery, obtained in the same way as
+LPS.
+
+ltree[]:
+For array of ltree LPS is a bitwise OR-ed signatures of *ALL* children
+reachable from that node. Signatures are stored in RD-tree, implemented using
+GiST, which provides indexed access.
+
+ltree:
+For ltree we store LPS in a B-tree, implemented using GiST. Each node entry is
+represented by (left_bound, signature, right_bound), so that we could speedup
+operations <, <=, =, =>, > using left_bound, right_bound and prune branches of
+a tree using signature.
+-------------------------------------------------------------------------------
+We ask people who find the module useful to send us a postcards to:
+Moscow, 119899, Universitetski pr.13, Moscow State University, Sternberg
+Astronomical Institute, Russia
+For: Bartunov O.S.
+and
+Moscow, Bratislavskaya str.23, appt. 18, Russia
+For: Sigaev F.G.
diff --git a/contrib/ltree/_ltree_gist.c b/contrib/ltree/_ltree_gist.c
new file mode 100644
index 00000000000..84593deb97e
--- /dev/null
+++ b/contrib/ltree/_ltree_gist.c
@@ -0,0 +1,549 @@
+/*
+ * GiST support for ltree[]
+ * Teodor Sigaev <teodor@stack.net>
+ */
+
+#include "ltree.h"
+#include "access/gist.h"
+#include "access/rtree.h"
+#include "access/nbtree.h"
+#include "utils/array.h"
+
+#include "crc32.h"
+
+PG_FUNCTION_INFO_V1( _ltree_compress );
+Datum _ltree_compress(PG_FUNCTION_ARGS);
+PG_FUNCTION_INFO_V1( _ltree_same );
+Datum _ltree_same(PG_FUNCTION_ARGS);
+PG_FUNCTION_INFO_V1( _ltree_union );
+Datum _ltree_union(PG_FUNCTION_ARGS);
+PG_FUNCTION_INFO_V1( _ltree_penalty );
+Datum _ltree_penalty(PG_FUNCTION_ARGS);
+PG_FUNCTION_INFO_V1( _ltree_picksplit );
+Datum _ltree_picksplit(PG_FUNCTION_ARGS);
+PG_FUNCTION_INFO_V1( _ltree_consistent );
+Datum _ltree_consistent(PG_FUNCTION_ARGS);
+
+#define GETENTRY(vec,pos) ((ltree_gist *) DatumGetPointer(((GISTENTRY *) VARDATA(vec))[(pos)].key))
+#define NEXTVAL(x) ( (ltree*)( (char*)(x) + INTALIGN( VARSIZE(x) ) ) )
+#define SUMBIT(val) ( \
+ GETBITBYTE(val,0) + \
+ GETBITBYTE(val,1) + \
+ GETBITBYTE(val,2) + \
+ GETBITBYTE(val,3) + \
+ GETBITBYTE(val,4) + \
+ GETBITBYTE(val,5) + \
+ GETBITBYTE(val,6) + \
+ GETBITBYTE(val,7) \
+)
+#define WISH_F(a,b,c) (double)( -(double)(((a)-(b))*((a)-(b))*((a)-(b)))*(c) )
+
+static void
+hashing(BITVECP sign, ltree *t) {
+ int tlen = t->numlevel;
+ ltree_level *cur = LTREE_FIRST(t);
+ int hash;
+
+ while(tlen > 0) {
+ hash = crc32_sz( cur->name, cur->len );
+ AHASH( sign, hash );
+ cur = LEVEL_NEXT(cur);
+ tlen--;
+ }
+}
+
+Datum
+_ltree_compress(PG_FUNCTION_ARGS) {
+ GISTENTRY *entry = (GISTENTRY *)PG_GETARG_POINTER(0);
+ GISTENTRY *retval = entry;
+
+ if ( entry->leafkey ) { /* ltree */
+ ltree_gist *key;
+ ArrayType *val = (ArrayType*)DatumGetPointer(PG_DETOAST_DATUM(entry->key));
+ int4 len = LTG_HDRSIZE + ASIGLEN;
+ int num=ArrayGetNItems( ARR_NDIM(val), ARR_DIMS(val) );
+ ltree *item = (ltree*)ARR_DATA_PTR(val);
+
+ if ( ARR_NDIM(val) != 1 )
+ elog(ERROR,"Dimension of array != 1");
+
+ key = (ltree_gist*)palloc( len );
+ key->len = len;
+ key->flag = 0;
+
+ MemSet( LTG_SIGN(key), 0, sizeof(ASIGLEN) );
+ while( num>0 ) {
+ hashing(LTG_SIGN(key), item);
+ num--;
+ item = NEXTVAL(item);
+ }
+
+ if ( PointerGetDatum(val) != entry->key )
+ pfree(val);
+
+ retval = (GISTENTRY*)palloc( sizeof(GISTENTRY) );
+ gistentryinit(*retval, PointerGetDatum(key),
+ entry->rel, entry->page,
+ entry->offset, key->len, FALSE);
+ } else {
+ int4 i,len;
+ ltree_gist *key;
+
+ BITVECP sign = LTG_SIGN(DatumGetPointer( entry->key ) );
+
+ ALOOPBYTE(
+ if ( sign[i] != 0xff )
+ PG_RETURN_POINTER(retval);
+ );
+
+ len = LTG_HDRSIZE;
+ key = (ltree_gist*)palloc( len );
+ key->len = len;
+ key->flag = LTG_ALLTRUE;
+
+ retval = (GISTENTRY*)palloc( sizeof(GISTENTRY) );
+ gistentryinit(*retval, PointerGetDatum(key),
+ entry->rel, entry->page,
+ entry->offset, key->len, FALSE);
+ }
+ PG_RETURN_POINTER(retval);
+}
+
+Datum
+_ltree_same(PG_FUNCTION_ARGS) {
+ ltree_gist* a=(ltree_gist*)PG_GETARG_POINTER(0);
+ ltree_gist* b=(ltree_gist*)PG_GETARG_POINTER(1);
+ bool *result = (bool *)PG_GETARG_POINTER(2);
+
+ if ( LTG_ISALLTRUE(a) && LTG_ISALLTRUE(b) ) {
+ *result = true;
+ } else if ( LTG_ISALLTRUE(a) ) {
+ *result = false;
+ } else if ( LTG_ISALLTRUE(b) ) {
+ *result = false;
+ } else {
+ int4 i;
+ BITVECP sa=LTG_SIGN(a), sb=LTG_SIGN(b);
+ *result = true;
+ ALOOPBYTE(
+ if ( sa[i] != sb[i] ) {
+ *result = false;
+ break;
+ }
+ );
+ }
+ PG_RETURN_POINTER(result);
+}
+
+static int4
+unionkey( BITVECP sbase, ltree_gist *add ) {
+ int4 i;
+ BITVECP sadd = LTG_SIGN( add );
+
+ if ( LTG_ISALLTRUE(add) )
+ return 1;
+
+ ALOOPBYTE(
+ sbase[i] |= sadd[i];
+ );
+ return 0;
+}
+
+Datum
+_ltree_union(PG_FUNCTION_ARGS) {
+ bytea *entryvec = (bytea *) PG_GETARG_POINTER(0);
+ int *size = (int *) PG_GETARG_POINTER(1);
+ ABITVEC base;
+ int4 len = (VARSIZE(entryvec) - VARHDRSZ) / sizeof(GISTENTRY);
+ int4 i;
+ int4 flag = 0;
+ ltree_gist *result;
+
+ MemSet( (void*)base, 0, sizeof(ABITVEC) );
+ for(i=0;i<len;i++) {
+ if ( unionkey( base, GETENTRY(entryvec, i) ) ) {
+ flag = LTG_ALLTRUE;
+ break;
+ }
+ }
+
+ len = LTG_HDRSIZE + ( ( flag & LTG_ALLTRUE ) ? 0 : ASIGLEN );
+ result = (ltree_gist*)palloc( len );
+ *size = result->len = len;
+ result->flag = flag;
+ if ( ! LTG_ISALLTRUE(result) )
+ memcpy((void*)LTG_SIGN(result), (void*)base, sizeof( ABITVEC ) );
+
+ PG_RETURN_POINTER(result);
+}
+
+static int4
+sizebitvec( BITVECP sign ) {
+ int4 size=0, i;
+ ALOOPBYTE(
+ size += SUMBIT(*(char*)sign);
+ sign = (BITVECP) ( ((char*)sign) + 1 );
+ );
+ return size;
+}
+
+Datum
+_ltree_penalty(PG_FUNCTION_ARGS) {
+ ltree_gist *origval = (ltree_gist*)DatumGetPointer( ( (GISTENTRY *)PG_GETARG_POINTER(0) )->key );
+ ltree_gist *newval = (ltree_gist*)DatumGetPointer( ( (GISTENTRY *)PG_GETARG_POINTER(1) )->key );
+ float *penalty = (float *) PG_GETARG_POINTER(2);
+ BITVECP orig = LTG_SIGN(origval);
+
+ if ( LTG_ISALLTRUE(origval) ) {
+ *penalty = 0.0;
+ PG_RETURN_POINTER( penalty );
+ }
+
+ if ( LTG_ISALLTRUE(newval) ) {
+ *penalty = (float) (ASIGLENBIT - sizebitvec( orig ) );
+ } else {
+ unsigned char valtmp;
+ BITVECP nval = LTG_SIGN(newval);
+ int4 i, unionsize=0;
+
+ ALOOPBYTE(
+ valtmp = nval[i] | orig[i];
+ unionsize += SUMBIT(valtmp) - SUMBIT(orig[i]);
+ );
+ *penalty = (float)unionsize;
+ }
+ PG_RETURN_POINTER( penalty );
+}
+
+typedef struct {
+ OffsetNumber pos;
+ int4 cost;
+} SPLITCOST;
+
+static int
+comparecost( const void *a, const void *b ) {
+ return ((SPLITCOST*)a)->cost - ((SPLITCOST*)b)->cost;
+}
+
+Datum
+_ltree_picksplit(PG_FUNCTION_ARGS) {
+ bytea *entryvec = (bytea*) PG_GETARG_POINTER(0);
+ GIST_SPLITVEC *v = (GIST_SPLITVEC*) PG_GETARG_POINTER(1);
+ OffsetNumber k,j;
+ ltree_gist *datum_l, *datum_r;
+ ABITVEC union_l, union_r;
+ bool firsttime = true;
+ int4 size_alpha,size_beta,sizeu,sizei;
+ int4 size_waste, waste = 0.0;
+ int4 size_l, size_r;
+ int4 nbytes;
+ OffsetNumber seed_1=0, seed_2=0;
+ OffsetNumber *left, *right;
+ OffsetNumber maxoff;
+ BITVECP ptra, ptrb, ptrc;
+ int i;
+ unsigned char valtmp;
+ SPLITCOST *costvector;
+ ltree_gist *_k, *_j;
+
+ maxoff = ((VARSIZE(entryvec) - VARHDRSZ) / sizeof(GISTENTRY)) - 2;
+ nbytes = (maxoff + 2) * sizeof(OffsetNumber);
+ v->spl_left = (OffsetNumber *) palloc(nbytes);
+ v->spl_right = (OffsetNumber *) palloc(nbytes);
+
+ for (k = FirstOffsetNumber; k < maxoff; k = OffsetNumberNext(k)) {
+ _k = GETENTRY(entryvec,k);
+ for (j = OffsetNumberNext(k); j <= maxoff; j = OffsetNumberNext(j)) {
+ _j = GETENTRY(entryvec,j);
+ if ( LTG_ISALLTRUE(_k) || LTG_ISALLTRUE(_j) ) {
+ sizeu = ASIGLENBIT;
+ if ( LTG_ISALLTRUE(_k) && LTG_ISALLTRUE(_j) )
+ sizei = ASIGLENBIT;
+ else
+ sizei = ( LTG_ISALLTRUE(_k) ) ?
+ sizebitvec( LTG_SIGN(_j) ) : sizebitvec( LTG_SIGN(_k) );
+ } else {
+ sizeu = sizei = 0;
+ ptra = LTG_SIGN(_j);
+ ptrb = LTG_SIGN(_k);
+ /* critical section for bench !!! */
+
+#define COUNT(pos) do { \
+ if ( GETBITBYTE(*(char*)ptra,pos) ) { \
+ sizeu++; \
+ if ( GETBITBYTE(*(char*)ptrb, pos) ) \
+ sizei++; \
+ } else if ( GETBITBYTE(*(char*)ptrb, pos) ) \
+ sizeu++; \
+} while(0)
+
+ ALOOPBYTE(
+ COUNT(0);
+ COUNT(1);
+ COUNT(2);
+ COUNT(3);
+ COUNT(4);
+ COUNT(5);
+ COUNT(6);
+ COUNT(7);
+ ptra = (BITVECP) ( ((char*)ptra) + 1 );
+ ptrb = (BITVECP) ( ((char*)ptrb) + 1 );
+ );
+ }
+ size_waste = sizeu - sizei;
+ if (size_waste > waste || firsttime) {
+ waste = size_waste;
+ seed_1 = k;
+ seed_2 = j;
+ firsttime = false;
+ }
+ }
+ }
+
+ left = v->spl_left;
+ v->spl_nleft = 0;
+ right = v->spl_right;
+ v->spl_nright = 0;
+
+ if ( seed_1 == 0 || seed_2 == 0 ) {
+ seed_1 = 1;
+ seed_2 = 2;
+ }
+
+ /* form initial .. */
+ if ( LTG_ISALLTRUE(GETENTRY(entryvec,seed_1)) ) {
+ datum_l = (ltree_gist*)palloc( LTG_HDRSIZE );
+ datum_l->len = LTG_HDRSIZE; datum_l->flag = LTG_ALLTRUE;
+ size_l = ASIGLENBIT;
+ } else {
+ datum_l = (ltree_gist*)palloc( LTG_HDRSIZE + ASIGLEN );
+ datum_l->len = LTG_HDRSIZE + ASIGLEN; datum_l->flag = 0;
+ memcpy((void*)LTG_SIGN(datum_l), (void*)LTG_SIGN(GETENTRY(entryvec,seed_1)), sizeof(ABITVEC));
+ size_l = sizebitvec( LTG_SIGN(datum_l) );
+ }
+ if ( LTG_ISALLTRUE(GETENTRY(entryvec,seed_2)) ) {
+ datum_r = (ltree_gist*)palloc( LTG_HDRSIZE );
+ datum_r->len = LTG_HDRSIZE; datum_r->flag = LTG_ALLTRUE;
+ size_r = ASIGLENBIT;
+ } else {
+ datum_r = (ltree_gist*)palloc( LTG_HDRSIZE + ASIGLEN );
+ datum_r->len = LTG_HDRSIZE + ASIGLEN; datum_r->flag = 0;
+ memcpy((void*)LTG_SIGN(datum_r), (void*)LTG_SIGN(GETENTRY(entryvec,seed_2)), sizeof(ABITVEC));
+ size_r = sizebitvec( LTG_SIGN(datum_r) );
+ }
+
+ maxoff = OffsetNumberNext(maxoff);
+ /* sort before ... */
+ costvector=(SPLITCOST*)palloc( sizeof(SPLITCOST)*maxoff );
+ for (j = FirstOffsetNumber; j <= maxoff; j = OffsetNumberNext(j)) {
+ costvector[j-1].pos = j;
+ _j = GETENTRY(entryvec,j);
+ if ( LTG_ISALLTRUE(_j) ) {
+ size_alpha = ASIGLENBIT - size_l;
+ size_beta = ASIGLENBIT - size_r;
+ } else {
+ ptra = LTG_SIGN( datum_l );
+ ptrb = LTG_SIGN( datum_r );
+ ptrc = LTG_SIGN( _j );
+ size_beta = size_alpha = 0;
+ if ( LTG_ISALLTRUE(datum_l) ) {
+ if ( !LTG_ISALLTRUE(datum_r) ) {
+ ALOOPBIT(
+ if ( GETBIT(ptrc,i) && ! GETBIT(ptrb,i) )
+ size_beta++;
+ );
+ }
+ } else if ( LTG_ISALLTRUE(datum_r) ) {
+ if ( !LTG_ISALLTRUE(datum_l) ) {
+ ALOOPBIT(
+ if ( GETBIT(ptrc,i) && ! GETBIT(ptra,i) )
+ size_alpha++;
+ );
+ }
+ } else {
+ ALOOPBIT(
+ if ( GETBIT(ptrc,i) && ! GETBIT(ptra,i) )
+ size_alpha++;
+ if ( GETBIT(ptrc,i) && ! GETBIT(ptrb,i) )
+ size_beta++;
+ );
+ }
+ }
+ costvector[j-1].cost = abs( size_alpha - size_beta );
+ }
+ qsort( (void*)costvector, maxoff, sizeof(SPLITCOST), comparecost );
+
+ for (k = 0; k < maxoff; k++) {
+ j = costvector[k].pos;
+ _j = GETENTRY(entryvec,j);
+ if ( j == seed_1 ) {
+ *left++ = j;
+ v->spl_nleft++;
+ continue;
+ } else if ( j == seed_2 ) {
+ *right++ = j;
+ v->spl_nright++;
+ continue;
+ }
+
+ if ( LTG_ISALLTRUE(datum_l) || LTG_ISALLTRUE(_j) ) {
+ size_alpha = ASIGLENBIT;
+ } else {
+ ptra = LTG_SIGN(_j);
+ ptrb = LTG_SIGN(datum_l);
+ size_alpha = 0;
+ ALOOPBYTE(
+ valtmp = union_l[i] = ptra[i] | ptrb[i];
+ size_alpha += SUMBIT( valtmp );
+ );
+ }
+
+ if ( LTG_ISALLTRUE(datum_r) || LTG_ISALLTRUE(_j) ) {
+ size_beta = ASIGLENBIT;
+ } else {
+ ptra = LTG_SIGN(_j);
+ ptrb = LTG_SIGN(datum_r);
+ size_beta = 0;
+ ALOOPBYTE(
+ valtmp = union_r[i] = ptra[i] | ptrb[i];
+ size_beta += SUMBIT( valtmp );
+ );
+ }
+
+ if (size_alpha - size_l < size_beta - size_r + WISH_F(v->spl_nleft, v->spl_nright, 0.1)) {
+ if ( ! LTG_ISALLTRUE( datum_l ) ) {
+ if ( size_alpha == ASIGLENBIT ) {
+ if ( size_alpha != size_l )
+ MemSet( (void*)LTG_SIGN(datum_l),0xff, sizeof(ABITVEC));
+ } else
+ memcpy( (void*)LTG_SIGN(datum_l), (void*)union_l, sizeof(ABITVEC) );
+ }
+ size_l = size_alpha;
+ *left++ = j;
+ v->spl_nleft++;
+ } else {
+ if ( ! LTG_ISALLTRUE( datum_r ) ) {
+ if ( size_beta == ASIGLENBIT ) {
+ if ( size_beta != size_r )
+ MemSet( (void*)LTG_SIGN(datum_r),0xff, sizeof(ABITVEC));
+ } else
+ memcpy( (void*)LTG_SIGN(datum_r), (void*)union_r, sizeof(ABITVEC) );
+ }
+ size_r = size_beta;
+ *right++ = j;
+ v->spl_nright++;
+ }
+ }
+
+ *right = *left = FirstOffsetNumber;
+ pfree(costvector);
+
+ v->spl_ldatum = PointerGetDatum(datum_l);
+ v->spl_rdatum = PointerGetDatum(datum_r);
+
+ PG_RETURN_POINTER( v );
+}
+
+static bool
+gist_te(ltree_gist *key, ltree* query) {
+ ltree_level *curq = LTREE_FIRST(query);
+ BITVECP sign = LTG_SIGN(key);
+ int qlen = query->numlevel;
+ unsigned int hv;
+
+ if ( LTG_ISALLTRUE(key) )
+ return true;
+
+ while( qlen>0 ) {
+ hv = crc32_sz(curq->name,curq->len);
+ if ( ! GETBIT( sign, AHASHVAL(hv) ) )
+ return false;
+ curq = LEVEL_NEXT(curq);
+ qlen--;
+ }
+
+ return true;
+}
+
+static bool
+checkcondition_bit(void *checkval, ITEM* val ) {
+ return ( FLG_CANLOOKSIGN(val->flag) ) ? GETBIT( checkval, AHASHVAL( val->val ) ) : true;
+}
+
+static bool
+gist_qtxt(ltree_gist *key, ltxtquery* query) {
+ if ( LTG_ISALLTRUE(key) )
+ return true;
+
+ return execute(
+ GETQUERY(query),
+ (void*)LTG_SIGN(key), false,
+ checkcondition_bit
+ );
+}
+
+static bool
+gist_qe(ltree_gist *key, lquery* query) {
+ lquery_level *curq = LQUERY_FIRST(query);
+ BITVECP sign = LTG_SIGN(key);
+ int qlen = query->numlevel;
+
+ if ( LTG_ISALLTRUE(key) )
+ return true;
+
+ while( qlen>0 ) {
+ if ( curq->numvar && LQL_CANLOOKSIGN(curq) ) {
+ bool isexist=false;
+ int vlen = curq->numvar;
+ lquery_variant *curv = LQL_FIRST(curq);
+ while( vlen>0 ) {
+ if ( GETBIT( sign, AHASHVAL( curv->val ) ) ) {
+ isexist=true;
+ break;
+ }
+ curv = LVAR_NEXT(curv);
+ vlen--;
+ }
+ if ( !isexist )
+ return false;
+ }
+
+ curq = LQL_NEXT(curq);
+ qlen--;
+ }
+
+ return true;
+}
+
+
+Datum
+_ltree_consistent(PG_FUNCTION_ARGS) {
+ GISTENTRY *entry = (GISTENTRY*)PG_GETARG_POINTER(0);
+ char *query = (char*)DatumGetPointer( PG_DETOAST_DATUM(PG_GETARG_DATUM(1)) );
+ ltree_gist *key = (ltree_gist*)DatumGetPointer( entry->key );
+ StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
+ bool res = false;
+
+#ifndef assert_enabled
+#define assert_enabled 0
+#endif
+
+ switch( strategy ) {
+ case 10:
+ case 11:
+ res = gist_te(key, (ltree*)query);
+ break;
+ case 12:
+ case 13:
+ res = gist_qe(key, (lquery*)query);
+ break;
+ case 14:
+ case 15:
+ res = gist_qtxt(key, (ltxtquery*)query);
+ break;
+ default:
+ elog(ERROR,"Unknown StrategyNumber: %d", strategy);
+ }
+ PG_RETURN_BOOL(res);
+}
+
diff --git a/contrib/ltree/_ltree_op.c b/contrib/ltree/_ltree_op.c
new file mode 100644
index 00000000000..3df2d962d4e
--- /dev/null
+++ b/contrib/ltree/_ltree_op.c
@@ -0,0 +1,212 @@
+/*
+ * op function for ltree[]
+ * Teodor Sigaev <teodor@stack.net>
+ */
+
+#include "ltree.h"
+#include <ctype.h>
+#include "utils/array.h"
+
+PG_FUNCTION_INFO_V1(_ltree_isparent);
+PG_FUNCTION_INFO_V1(_ltree_r_isparent);
+PG_FUNCTION_INFO_V1(_ltree_risparent);
+PG_FUNCTION_INFO_V1(_ltree_r_risparent);
+PG_FUNCTION_INFO_V1(_ltq_regex);
+PG_FUNCTION_INFO_V1(_ltq_rregex);
+PG_FUNCTION_INFO_V1(_ltxtq_exec);
+PG_FUNCTION_INFO_V1(_ltxtq_rexec);
+
+Datum _ltree_r_isparent(PG_FUNCTION_ARGS);
+Datum _ltree_r_risparent(PG_FUNCTION_ARGS);
+
+PG_FUNCTION_INFO_V1(_ltree_extract_isparent);
+PG_FUNCTION_INFO_V1(_ltree_extract_risparent);
+PG_FUNCTION_INFO_V1(_ltq_extract_regex);
+PG_FUNCTION_INFO_V1(_ltxtq_extract_exec);
+Datum _ltree_extract_isparent(PG_FUNCTION_ARGS);
+Datum _ltree_extract_risparent(PG_FUNCTION_ARGS);
+Datum _ltq_extract_regex(PG_FUNCTION_ARGS);
+Datum _ltxtq_extract_exec(PG_FUNCTION_ARGS);
+
+
+typedef Datum (*PGCALL2)(PG_FUNCTION_ARGS);
+#define NEXTVAL(x) ( (ltree*)( (char*)(x) + INTALIGN( VARSIZE(x) ) ) )
+
+static bool
+array_iterator( ArrayType *la, PGCALL2 callback, void* param, ltree ** found) {
+ int num=ArrayGetNItems( ARR_NDIM(la), ARR_DIMS(la));
+ ltree *item = (ltree*)ARR_DATA_PTR(la);
+
+ if ( ARR_NDIM(la) !=1 )
+ elog(ERROR,"Dimension of array != 1");
+
+ if ( found )
+ *found=NULL;
+ while( num>0 ) {
+ if ( DatumGetBool( DirectFunctionCall2( callback,
+ PointerGetDatum(item), PointerGetDatum(param) ) ) ) {
+
+ if ( found )
+ *found = item;
+ return true;
+ }
+ num--;
+ item = NEXTVAL(item);
+ }
+
+ return false;
+}
+
+Datum
+_ltree_isparent(PG_FUNCTION_ARGS) {
+ ArrayType *la = (ArrayType *)DatumGetPointer(PG_DETOAST_DATUM(PG_GETARG_DATUM(0)));
+ ltree *query = PG_GETARG_LTREE(1);
+ bool res = array_iterator( la, ltree_isparent, (void*)query, NULL );
+ PG_FREE_IF_COPY(la,0);
+ PG_FREE_IF_COPY(query,1);
+ PG_RETURN_BOOL(res);
+}
+
+Datum
+_ltree_r_isparent(PG_FUNCTION_ARGS) {
+ PG_RETURN_DATUM( DirectFunctionCall2( _ltree_isparent,
+ PG_GETARG_DATUM(1),
+ PG_GETARG_DATUM(0)
+ ) );
+}
+
+Datum
+_ltree_risparent(PG_FUNCTION_ARGS) {
+ ArrayType *la = (ArrayType *)DatumGetPointer(PG_DETOAST_DATUM(PG_GETARG_DATUM(0)));
+ ltree *query = PG_GETARG_LTREE(1);
+ bool res = array_iterator( la, ltree_risparent, (void*)query, NULL );
+ PG_FREE_IF_COPY(la,0);
+ PG_FREE_IF_COPY(query,1);
+ PG_RETURN_BOOL(res);
+}
+
+Datum
+_ltree_r_risparent(PG_FUNCTION_ARGS) {
+ PG_RETURN_DATUM( DirectFunctionCall2( _ltree_risparent,
+ PG_GETARG_DATUM(1),
+ PG_GETARG_DATUM(0)
+ ) );
+}
+
+Datum
+_ltq_regex(PG_FUNCTION_ARGS) {
+ ArrayType *la = (ArrayType *)DatumGetPointer(PG_DETOAST_DATUM(PG_GETARG_DATUM(0)));
+ lquery *query = PG_GETARG_LQUERY(1);
+ bool res = array_iterator( la, ltq_regex, (void*)query, NULL );
+ PG_FREE_IF_COPY(la,0);
+ PG_FREE_IF_COPY(query,1);
+ PG_RETURN_BOOL(res);
+}
+
+Datum
+_ltq_rregex(PG_FUNCTION_ARGS) {
+ PG_RETURN_DATUM( DirectFunctionCall2( _ltq_regex,
+ PG_GETARG_DATUM(1),
+ PG_GETARG_DATUM(0)
+ ) );
+}
+
+Datum
+_ltxtq_exec(PG_FUNCTION_ARGS) {
+ ArrayType *la = (ArrayType *)DatumGetPointer(PG_DETOAST_DATUM(PG_GETARG_DATUM(0)));
+ ltxtquery *query = PG_GETARG_LTXTQUERY(1);
+ bool res = array_iterator( la, ltxtq_exec, (void*)query, NULL );
+ PG_FREE_IF_COPY(la,0);
+ PG_FREE_IF_COPY(query,1);
+ PG_RETURN_BOOL(res);
+}
+
+Datum
+_ltxtq_rexec(PG_FUNCTION_ARGS) {
+ PG_RETURN_DATUM( DirectFunctionCall2( _ltxtq_exec,
+ PG_GETARG_DATUM(1),
+ PG_GETARG_DATUM(0)
+ ) );
+}
+
+
+Datum
+_ltree_extract_isparent(PG_FUNCTION_ARGS) {
+ ArrayType *la = (ArrayType *)DatumGetPointer(PG_DETOAST_DATUM(PG_GETARG_DATUM(0)));
+ ltree *query = PG_GETARG_LTREE(1);
+ ltree *found,*item;
+
+ if ( !array_iterator( la, ltree_isparent, (void*)query, &found ) ) {
+ PG_FREE_IF_COPY(la,0);
+ PG_FREE_IF_COPY(query,1);
+ PG_RETURN_NULL();
+ }
+
+ item = (ltree*)palloc( found->len );
+ memcpy( item, found, found->len );
+
+ PG_FREE_IF_COPY(la,0);
+ PG_FREE_IF_COPY(query,1);
+ PG_RETURN_POINTER(item);
+}
+
+Datum
+_ltree_extract_risparent(PG_FUNCTION_ARGS) {
+ ArrayType *la = (ArrayType *)DatumGetPointer(PG_DETOAST_DATUM(PG_GETARG_DATUM(0)));
+ ltree *query = PG_GETARG_LTREE(1);
+ ltree *found,*item;
+
+ if ( !array_iterator( la, ltree_risparent, (void*)query, &found ) ) {
+ PG_FREE_IF_COPY(la,0);
+ PG_FREE_IF_COPY(query,1);
+ PG_RETURN_NULL();
+ }
+
+ item = (ltree*)palloc( found->len );
+ memcpy( item, found, found->len );
+
+ PG_FREE_IF_COPY(la,0);
+ PG_FREE_IF_COPY(query,1);
+ PG_RETURN_POINTER(item);
+}
+
+Datum
+_ltq_extract_regex(PG_FUNCTION_ARGS) {
+ ArrayType *la = (ArrayType *)DatumGetPointer(PG_DETOAST_DATUM(PG_GETARG_DATUM(0)));
+ lquery *query = PG_GETARG_LQUERY(1);
+ ltree *found,*item;
+
+ if ( !array_iterator( la, ltq_regex, (void*)query, &found ) ) {
+ PG_FREE_IF_COPY(la,0);
+ PG_FREE_IF_COPY(query,1);
+ PG_RETURN_NULL();
+ }
+
+ item = (ltree*)palloc( found->len );
+ memcpy( item, found, found->len );
+
+ PG_FREE_IF_COPY(la,0);
+ PG_FREE_IF_COPY(query,1);
+ PG_RETURN_POINTER(item);
+}
+
+Datum
+_ltxtq_extract_exec(PG_FUNCTION_ARGS) {
+ ArrayType *la = (ArrayType *)DatumGetPointer(PG_DETOAST_DATUM(PG_GETARG_DATUM(0)));
+ ltxtquery *query = PG_GETARG_LTXTQUERY(1);
+ ltree *found,*item;
+
+ if ( !array_iterator( la, ltxtq_exec, (void*)query, &found ) ) {
+ PG_FREE_IF_COPY(la,0);
+ PG_FREE_IF_COPY(query,1);
+ PG_RETURN_NULL();
+ }
+
+ item = (ltree*)palloc( found->len );
+ memcpy( item, found, found->len );
+
+ PG_FREE_IF_COPY(la,0);
+ PG_FREE_IF_COPY(query,1);
+ PG_RETURN_POINTER(item);
+}
+
diff --git a/contrib/ltree/crc32.c b/contrib/ltree/crc32.c
new file mode 100644
index 00000000000..bdfba6a3323
--- /dev/null
+++ b/contrib/ltree/crc32.c
@@ -0,0 +1,110 @@
+/* Both POSIX and CRC32 checksums */
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <sys/types.h>
+
+#ifdef LOWER_NODE
+#include <ctype.h>
+#define TOLOWER(x) tolower(x)
+#else
+#define TOLOWER(x) (x)
+#endif
+
+#include "crc32.h"
+
+/*
+ * This code implements the AUTODIN II polynomial
+ * The variable corresponding to the macro argument "crc" should
+ * be an unsigned long.
+ * Oroginal code by Spencer Garrett <srg@quick.com>
+ */
+
+#define _CRC32_(crc, ch) (crc = (crc >> 8) ^ crc32tab[(crc ^ (ch)) & 0xff])
+
+/* generated using the AUTODIN II polynomial
+ * x^32 + x^26 + x^23 + x^22 + x^16 +
+ * x^12 + x^11 + x^10 + x^8 + x^7 + x^5 + x^4 + x^2 + x^1 + 1
+ */
+
+static const unsigned int crc32tab[256] = {
+ 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba,
+ 0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
+ 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
+ 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
+ 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
+ 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
+ 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec,
+ 0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,
+ 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
+ 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
+ 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940,
+ 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
+ 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116,
+ 0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f,
+ 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
+ 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,
+ 0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a,
+ 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
+ 0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818,
+ 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
+ 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
+ 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457,
+ 0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c,
+ 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
+ 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
+ 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb,
+ 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
+ 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9,
+ 0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086,
+ 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
+ 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4,
+ 0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,
+ 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
+ 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683,
+ 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
+ 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
+ 0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe,
+ 0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7,
+ 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
+ 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
+ 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252,
+ 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
+ 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60,
+ 0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79,
+ 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
+ 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f,
+ 0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04,
+ 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
+ 0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a,
+ 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
+ 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
+ 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21,
+ 0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e,
+ 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
+ 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
+ 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45,
+ 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
+ 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db,
+ 0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0,
+ 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
+ 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6,
+ 0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,
+ 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
+ 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d,
+};
+
+unsigned int
+crc32_sz(char *buf, int size)
+{
+ unsigned int crc = ~0;
+ char *p;
+ int len,
+ nr;
+
+ len = 0;
+ nr = size;
+ for (len += nr, p = buf; nr--; ++p)
+ _CRC32_(crc, TOLOWER(*p));
+ return ~crc;
+}
diff --git a/contrib/ltree/crc32.h b/contrib/ltree/crc32.h
new file mode 100644
index 00000000000..97254a4a909
--- /dev/null
+++ b/contrib/ltree/crc32.h
@@ -0,0 +1,10 @@
+#ifndef _CRC32_H
+#define _CRC32_H
+
+/* Returns crc32 of data block */
+extern unsigned int crc32_sz(char *buf, int size);
+
+/* Returns crc32 of null-terminated string */
+#define crc32(buf) crc32_sz((buf),strlen(buf))
+
+#endif
diff --git a/contrib/ltree/data/_ltree.data b/contrib/ltree/data/_ltree.data
new file mode 100644
index 00000000000..9ba2787b087
--- /dev/null
+++ b/contrib/ltree/data/_ltree.data
@@ -0,0 +1,1000 @@
+{14.30.13.5.26.9.22.23.14.10, 22.8.20.1.10.28.6.27, 16.30.10.7.29.4.9.21.22.13.26}
+{5.8.17.30.15.8.19.29.30.11.6, 3.13, 15.8.10, 23.17.28.31.28}
+{22.23.22.30, 4.31, 7.13, 32.6.31.31}
+{19.10.26.19.5.21.30.23, 24.1.10.20.28.18.6.27.20.30.26, 5.4.8.25.12.27.2.29.28.3, 1.1.1.2}
+{11.14.21.24.10.7.29.23.24.28, 31.13.9.1.5.12, 23.12.32.22.19.1.22.4}
+{8.32.30.1, 13.8.20.9.21, 8.29.6.3, 30.8.9.14.25.30, 24.2.26.24.14.15.31.23.17.26}
+{28.5.12.9.2.27.11.11.2, 24.9.27.16.20.21, 31.30.12.20}
+{29.9.25.27.15.16.32.26.6.32, 5.24.25.15.27.30.20}
+{12.21.20.20, 4.14.10.19.16, 2.15.14.20.30.26, 19.26.24.27.6.24.16.27.32.29, 29.10.12.17.12.16}
+{22.23.22.30, 25.19.27.2.9.20}
+{5.3.29.9.22, 28.14.32.29.2.3.4, 21.14.25.20.13.31.14.20, 22.25.4.28.9.20.12.13}
+{19.16.31.31.29.12, 1.30.18.31.12.25.4.19.28.12.15, 25.24.29}
+{27.27.25.10.31.10.21.22.21.16.12, 7.30.5.10.10.5.30.14.9.18, 3.6.24.21.20.32.3.4.26.5}
+{24.9.27.16.20.21, 12.11.20.20.29, 12.29.17.2.20.29.1.11.19.8.12}
+{25.2.11.20.8.6.22, 22.24.22.25.15.23.13}
+{16.14.3.17.17.26.12.19.19.30, 28.20.8.9.9.28.30.29, 14.9.15.21.21.31.1.29}
+{6.26.29.10.21.28.20.19, 23.24.11.31.10.31.18.28.13.18.6, 13.17.7, 29.23.1.21.31.8, 7.27.20}
+{22.17.4.2.22.17, 19.9.32.23.13.24.1}
+{26.31.7, 16.21.13.1.4}
+{22.23.25.28.5.27.9.9.24.31.10, 18.9.26.7, 23.14.12.30.18.4.16.18.7.7, 27.29.1.5.30.6.22.16.23.2.28, 10.29}
+{30.27.8.6.11.19, 3.15.2.23.22.2.16.14}
+{25.17.18.30, 18.29.5.1.10.21.2, 8.21.17.3.6.3.18, 26.31.7, 26.11}
+{5.27.32.21.5.1.11.14, 27.3.3.11.21.4.25, 4.2.16.13.16.11.19.10.10.25, 32.3.23.7.2}
+{3.21.6.13.12.18.25, 1.27.22.23.2.26.32.17.7.9, 9.23.21.22.5.29.15.21, 15.5.1.31.28.10.8, 27.5.15.1.15.16.21}
+{30.25.17.17.10.29, 31.29.18.26.1.26.17, 2.2.18.18.3.3.18.8.10.8, 8.31.22.27, 18.9.21.2.31.8.32}
+{14.6.10.29.25.26.20.24.24, 24.25.7.27.30.8.26.17, 3.4.22.19, 31.29.4.29.24.30.30.32.10.23, 14.5.13.19.25.12.32.9.13.16.12}
+{8.10, 20.6.3.26.7.29.28.4, 31.29.4.29.24.30.30.32.10.23, 30.18.30.16.29}
+{14.21.6.5.26.9.32.16.25, 29.20.1.11.21.16.1.2.14.28}
+{12.7.16.8.21.22.2.16.18, 6.7.25.16.13.21.7.20.25.12.4, 18.29.13.24.18.3.12.18.12.12, 26.7.5.8.11.9.22.1.6, 32.30.18.17.1.14.12.18}
+{21.15.18.18.30.3.20, 22.10.16.8, 26.18.32.20}
+{5.27.28.26.14.15.6.20.1.31.13, 30.23.10.1.10.7.22.28.18.11.17, 5.27.28.26.14.15.6.20.1.31.13}
+{9.6.9.21.6.11.29.13.29.20.32, 27.21.28.24.7.2.24.23.8, 26.25.10.10.13, 14.17.7.30.8.25.26.4}
+{10.3.19, 10.16.19.7.15, 1.1, 14.21.6.5.26.9.32.16.25, 24.3.23.25}
+{15.10.30.1.4.12.8.20, 22.25.4.28.9.20.12.13}
+{15.9.8.20.27, 8.13.9.31.20.20.24.7.23.31.28, 15.1.8, 28.25.29.4.13.5.6}
+{24.24, 20.3.1.8.8.30.20, 6.19.6.4.9.11.32.17.17.3.15, 9.31.4.14.31.10.17.5.2}
+{21.9.32.1.27, 29.14.31.25.7.32.23, 25.16.9.6}
+{1, 16.13.2.19.14.29.31.30.23.15.12, 26.19.3.14.8.28.31.10, 31.5.6.4.8.29.3, 1.11.10.19.6.1.26.17.2.22}
+{29.3.15.17.12.29, 19.9.32.23.13.24.1, 2.32.8.28.24.20.9.24.25.8.9, 30.12.9.25.24.6.7.24.29}
+{9.22.10.15.5.15, 29.30.7.31.22}
+{16.8.29.7.21.2.3, 23.10.5.26.12.4.20.4, 1.12.25.26.22.8.15.23, 4.9, 14.1.15.25.27.23.25.26.28.10}
+{11.17.10, 10.22.30.16.2.21.17.13, 29.27.7.7.3.11.14.26.21.11}
+{11.14.21.24.10.7.29.23.24.28, 27.22.11.13.21.25.5.1.27.21.27}
+{5.2.32.19.13.29.12.13.31.29, 8.6.6.5.8.8.12, 23.20.8, 5.27.21.1.29.29.28}
+{13.30.24, 17.11.17.4.8.26.26.20.6, 12.1.28.22.25}
+{5.14.27.15.11.17.3.10.27.25, 20.23.29.5.7.30.13.14.22, 24.13.1.8, 27.26.29, 27.18.10.4.22}
+{19.16.26.2, 25.3, 10.5.5.15.29.2}
+{32.6.3.2.12.5.28.1.25, 5.18.9.25.31.21.22}
+{13.8.20.9.21, 24.9.15.1.14.29.6.4}
+{1.15.17.6.28.25.24.31.27.9, 2.1.12.19.29.28.3.31.28.28.10, 25.16.9.6, 32.4.19}
+{30.12.6.30, 30.31.13.9, 23.12.19.25.16.23.22.6.29.4, 21.18.30.19.24.24}
+{26.26.22.21.14.11.29.19.14.24, 7.31.4.20.17, 14.30.13.5.26.9.22.23.14.10, 8.1.29.18.22}
+{12.23.3.19.29.15.12.6, 2.4.25.32.16.22.26.13.17.18, 32.6.13.8.32, 31.18.32.11.7.25.20.5, 10.31}
+{7.23.15.32.28.27.2.2.26, 8.32.30.1, 31.28.32.4.31.4.7, 2.31.25, 11.2.27.3}
+{11.12.6.21, 22.28.20.6.32.32}
+{21.14.22.29, 20.30.28.15.17, 4.22.17.10.19.9.8.19.28.3.9}
+{31.18.25.1.14.29.25.5.22.30, 24.32.27, 8.21.8.23.4.18}
+{28.15.25.7.13.6.19.2, 32.8.5, 25.17.18.17.27}
+{6.25.17.32, 22.17.7.30.13.24, 3.9.25.26.7, 14.23.31.5.5.15.17.12.17.7.3, 18.15.14}
+{13.12, 16.5.14.21.32.17.23.3.4.26}
+{1.19.22.11.14.7.32.23.19.14, 12.1.1, 19.26.24.27.6.24.16.27.32.29, 24.15.15.17.22}
+{10.27.7.24.26.11.31.20.29, 3.15.2.23.22.2.16.14, 26.32.8.12.30.19.24.8.6.1.10, 10.3.19}
+{28.26.25.7, 13.28.14.2.8.18, 7.31.2.28.15.11.17.18.19.23.6}
+{25.24.29, 21.18.2.1, 13.3.20}
+{32.25.16, 22.19.5.22.20.31.23.24.14.24.4, 5.27.16.3.30, 12.25.32.2.27.3.3.16, 30.25.8.24.6.29.31}
+{30.24.23.25.32.18.22.12.29.9.22, 11.30}
+{9.22.10.15.5.15, 25.16.9.6, 23.10.13.32.14.20.16.11.14}
+{22.10.27.19.29.20.29.3.12.14.25, 26.32.21.31.27.12, 3.26.32, 17.26.18}
+{5.14.29.2.23.16.20.22, 11.6.11.29.4.5.24.6.26.12, 8.21.17.3.6.3.18, 26.26.22.21.14.11.29.19.14.24}
+{28.8.21.15.16.28.4.16.26.8, 19.6.13.14.22.13.9.29, 11.17.10}
+{25.28.30.24, 26.25.24, 25.10.29.3.6.21.3.31.13}
+{32.24.29.6, 10.18.12.27.24.30.32.7.11.5.13, 20.6.26.3.30}
+{19.26.24.27.6.24.16.27.32.29, 1.31.3}
+{19.10.4.30.32.4.12, 20.25.22.19.22, 17.13.14.29.27.27.13.12.15, 5.1.5.31, 4.15.20.23.12.16.2.16.17}
+{16.13.19.11.18.13.17.17, 17.25.26.23.32, 31.18.27.15.20.29.29}
+{24.15.15.17.22, 24.2.26.24.14.15.31.23.17.26, 12.22.20.4.12, 3.13, 25.32.24.24.28.15.16.10}
+{4.11.19.17.2.22.20.18.13.32.15, 14.1.11, 14.8.15.30.7.29.27.31.4}
+{3.29.19.2.24, 24.23.29.8.24.11.21.10.28.14.27, 32.31.11.22.1, 31.13, 12.21.20.20}
+{28.4, 14.30.13.5.26.9.22.23.14.10, 19.26.32.13.1.12.30.26.22.25}
+{4.26.2.2, 9.30, 18.13.6.12.26.26.26.29.18.20.1, 22.23.22.30}
+{26.11, 7.19.10.12.31.1.27.13.19, 15.17}
+{12.16.13, 14.30.13.5.26.9.22.23.14.10, 21.5.17.19.15.25.18.21.24.9, 18.9.26.7}
+{30.27.8.6.11.19, 22.18.20.23.15.9.12}
+{31.18.32.11.7.25.20.5, 3.15.2.23.22.2.16.14}
+{22.20.30, 23.28.3.30.15.31.32.3.21.9.19, 6.18.1.4.18.23, 1.30.18.31.12.25.4.19.28.12.15, 17.13.19.31.12.18.10.15.14}
+{32.2.11, 22.24.22.25.15.23.13, 25.10.29.3.6.21.3.31.13, 20.32.9}
+{16.8.29.7.21.2.3, 6.27.29.14.8.12.26.3.21.4.1, 21.14.22.29}
+{15.8.10, 23.22.10.1.14.24, 23.5.7.12.11.23.10}
+{6.29.32.13.30.3.16, 24.23.29.8.24.11.21.10.28.14.27}
+{18.17.6.16.6.10, 14.19.30.6.4.10.10.10.22.25.11}
+{14.17.7.30.8.25.26.4, 16.13.19.11.18.13.17.17}
+{2.4.25.32.16.22.26.13.17.18, 7.16.20.17, 22.30}
+{9.2.4.27.26, 15.3.31.9.27.14.9.8.14.6.32, 10.5.5.15.29.2, 16.14.3.17.17.26.12.19.19.30}
+{16.9.32.14.3.7.8.7.21.22, 4.13, 31.18.27.15.20.29.29, 13.14.13.10.28.26.9.18.27.21}
+{2.28.5.17.6.32, 18.27.11.27.9.16.7.6.22.26.27, 29.5.18.27.3.21.18.6.14}
+{25.14.5.32.25, 30.24.32.15.14.10.11}
+{27.2.10.4.25.14.2.15.4, 1.22.19.24.8.11, 4.1.24.24.28.24.18}
+{5.15.16, 22.18.20.23.15.9.12, 8.11.20, 12.16.2.4.15, 21.17.27.23.15}
+{8.9.25.25.26.30.31.31.2.32.7, 1.1, 23.28.20.25.30.24.15, 26.5.29.7.28, 25.17.18.30}
+{32.6.8, 22.13.22.21.25.17.8, 6.29.32.13.30.3.16, 2.2.18.18.3.3.18.8.10.8, 6.7.7}
+{8.13.14.11.11.29.22.4.4.10, 26.28.14, 32.24.29.6, 25.10, 15.26.24.31.16.15.17.22.8.30.3}
+{14.16.6.29.26.13.14.16.25.26.8, 4.16.7.25.21.7, 13.32.15.32.26.14.32}
+{25.9.1.5.9.11.25.4.11.27.32, 25.17.2.20.20.3.29.21.3.12, 8.32.30.1}
+{19.15.26.19, 6.7.25.16.13.21.7.20.25.12.4, 7.5.28.8.17.26.31.10.15}
+{6.19.3, 17.25.10.13.21.5.7.22.2, 11.11.9.30.15.29.15.18, 21.18, 18.9.21.2.31.8.32}
+{23.27.27.16, 11.7.31.15.22, 25.17.2.20.20.3.29.21.3.12, 6.13.31.5.7.26}
+{30.8.18.5.20.6.15, 21.15.18.18.30.3.20}
+{2.13.9.28, 8.17.25.26.15.25}
+{25.22.2.25.6, 3.20.19.10.17.27.3.6.22.23, 11.7.31.15.22}
+{18.6.26.2.13.9.6.11.10.11.16, 8.10, 29.3.15.17.12.29, 19.31.14.25.5.8.21.11.13.20, 4.22}
+{14.21.5.28.3.32.24.14.25.31, 28.18.6.22.13.8.25, 5.19.1.26.20.6.20, 20.30.17, 29.25.29.16.32.11.15.25.5.22.3}
+{20.20.32.29.24.5.5.26.22.32, 29.23.1.21.31.8, 27.27.30.11.15.24.9.7.4.30}
+{22.28.20.6.32.32, 1.15.17.6.28.25.24.31.27.9, 2.10.10.4.20.1.12.13}
+{28.2.27.1.20, 8.1.29.18.22, 1, 28.26.25.7, 23.23}
+{8.9.22, 1.10.21, 27.27.30.11.15.24.9.7.4.30, 24.28.13.26.8.8.31, 27.26.29}
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diff --git a/contrib/ltree/data/ltree.data b/contrib/ltree/data/ltree.data
new file mode 100644
index 00000000000..246443e597f
--- /dev/null
+++ b/contrib/ltree/data/ltree.data
@@ -0,0 +1,1006 @@
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+19.2.9.29.6
+6.13.31.5.7.26
+27.11.14.17.24
+15.1.8
+11.15.11.19.29.10
+10.3.19
+5.3.29.9.22
+5.20
+13.9.9.27.31.11.25.9.27.22.13
+10.2.17.26.16.7.19.6.23.3
+30.8.18.5.20.6.15
+32.1.23.20.14.12.23.5.32.15
+3.9.11.23.32.26.24.28
+4.26.23.6.19.31.10.4.22
+1.10.23.25.5.11
+4.26.2.2
+14.30.2.21.15.16.13
+11.6.11.29.4.5.24.6.26.12
+19.26.32.13.1.12.30.26.22.25
+30.25.24.22
+6.11.11.5.16.8.14.12.9
+2.24.5.3.4.10.27.26.17.28.16
+3.18.8.22.7.28.32.31.3
+25.9
+12.14.20.8.28.4
+3.21.16.24.23.12.16.32.3
+8.3.18.13.30.20.27.26.17.28
+3.3
+8.32.30.1
+26.14.5.32.10
+24.20.23
+8.16.20.24.20.6.10.21
+23.12.32.22.19.1.22.4
+24.21.14.25.11.3.20.6.6.16
+12.4.10.17.4.10.23.3
+19.6.24.32.30.13.6.25.8.28
+1.3.15.11.11.25.24.21.19
+3.11.18.21.5.20.30
+9.23.21.22.5.29.15.21
+17.24.15.27.3.32.4.22.20.6.24
+23.24.11.31.10.31.18.28.13.18.6
+4.21.9.1.2.14.8.17.13.26
+23.28.20.25.30.24.15
+4.9
+8.13.14.11.11.29.22.4.4.10
+3.10.4.5.28.11
+29.10.17.11.28.12.18.5.19.15.21
+22.19.20.5.2.20
+19.6.13.14.22.13.9.29
+1.10.4.18.22.23.24
+28.11.27.21.14.16
+1.11.10.19.6.1.26.17.2.22
+24.17.31.20.12.9.19.29.18
+24.17.24
+19.5.20.3.4.2.3
+18.31.32.29.22.1.31.11.28
+15.21.22
+10.8.20.11.12.23.22
+9.8.23.2.20.16
+21.32.13.22.3.13.31.23.14.12.9
+4.22.7.19.25
+1.30.31.31.20.16.7
+22.29.29.11
+20.30.17
+30.24.32.15.14.10.11
+30.25.8.24.6.29.31
+9.21.14.19
+21.31.31.25.5.30.26
+20.25.22.19.22
+25.17.2.20.20.3.29.21.3.12
+29.6.12.31.20.23.32.20
+2.30.26.10.14.31.18.2
+28.6
+20.5.4.9.31.14.26.6
+20.1.24.3.30.31
+13.3.8
+25.29
+2.15.14.20.30.26
+5.24.4.31.3.16.25.17.13.26.11
+29.5.32.20.11.7.13.24.17
+24.9
+17.17.14.28.6.30
+4.11.22.4.19.24.4.28.6.8.22
+11.2.27.3
+28.25.10.25.19.15
+14.26.25.4.12.26.8
+3.10
+4.14
+28.31.10.28.22.26.16.15
+28.2.27.1.20
+32.8.5
+21.17.31.10.31.13.9.26.6.14
+13.7
+9.14.27.31.26.21.25.3.20
+17.29.31.8.24.10.18.27.17
+2.1.3.30.24.17.9
+18.15.14
+6.29.32.13.30.3.16
+27.17.3.18.2.13.18
+5.27.21.1.29.29.28
+13.3.20
+14.21.22
+4.18.29.9.16.10
+29.1.2.14.14
+8.13.1
+2.32.10.13.12
+9.10.32
+15.8.3.15.27.14.29.28.6.5.25
+12.22.20.4.12
+14.13.9.13.11.5.5.2.2.32.12
+9.21.20.29.1
+28.14.32.29.2.3.4
+28.9.3.16.17.21.23.30
+24.32.17.23.24.19.23.9.20.18
+15.26.24.31.16.15.17.22.8.30.3
+6.5.27.19.13.26.1.18.9
+2.6.15.26.23.26.24
+4.26.5.26.21.28.17.24.25.23
+25.14.5.32.25
+3.27.18.8.4.21.6.32.30.7.5
+2.11.32.25.23
+8.9.22
+18.18.5.11.7.4.25
+14.3.17.1.14.15.21.4.26
+10.3
+13.12
+27.31.2.16.29.6
+8.2
+27.18.10.4.22
+16.14.3.17.17.26.12.19.19.30
+20.9.29.32.13.7.23
+8.3.3.25.25.15.7.13.21.18
+4.16.7.25.21.7
+17.25.26.23.32
+20.3.1.8.8.30.20
+31.18.25.1.14.29.25.5.22.30
+21.20.28.19.27.9
+30.16.14.9.5.4.10.7.31
+30.22.29.21.19.14.3.2.6
+8.5.30.29.9.31
+23.28.1
+11.16.16.28.14
+18.6.26.2.13.9.6.11.10.11.16
+11.30
+16.5.6.12
+32.24.29.6
+8.31.22.27
+6.18.1.4.18.23
+28.5.13
+26.26.22.21.14.11.29.19.14.24
+29.1
+24.10.10.31.4.29.9
+19.11.10.18.14.13.7.7
+27.29.1.5.30.6.22.16.23.2.28
+3.11.32.11.22.3.7.17.8.13.23
+2.12.14.28.16.21
+24.23.29.8.24.11.21.10.28.14.27
+27.4
+4.11.19.17.2.22.20.18.13.32.15
+7.21.8
+2.27.15.14
+25.9.1.5.9.11.25.4.11.27.32
+25.31
+9.16.2.16.22.24.17.31.14.21.17
+32.1.31
+9.22.10.15.5.15
+12.10.11.9.10.31.4.16.31
+30.24
+15.25.31.11.4.22.16.7.11
+22.8.20.1.10.28.6.27
+10.12.23.22.23.22.20.17.17.9
+3.18.18
+7.7.22.24.17.32.17.25.28
+31.13.9.1.5.12
+25.17.18.17.27
+32.6.31.31
+26.8.28
+14.29
+30.6.4
+27.16
+24.18.16
+27.21.27.5.13.30.17
+23.20.8
+28.14.24.26.6.15.16.32.25.13.8
+13.1.6.17.28.9.15.30.1.27.14
+5.3.17.29
+13.8.15.3.7.31.5.10.15.30
+19.12.26.24.29.3
+11.21.16.27.16
+23.5.7.12.11.23.10
+29.15.29.8.31.26.1
+4.3.20.27.9.1.18.30.12.5.19
+7.19.12.3.21.19.18.5.2.14.10
+8.26.29.13.7.25.31.28.3.32
+12.16.13
+28.25.11.22
+17.26.18
+18.6.2.2.24
+24.11.5
+17.3
+21.14.25.20.13.31.14.20
+23.31.27.16.8.30.20.27
+3.32.2.29.3.32.28.11.29.30
+5.10.2.11.21.9.19
+16.27.8.17.14.17.21.29.14
+25.10.4.28.3.31.19
+16.13.19.11.18.13.17.17
+3.26.32
+5.13.23.4.9
+26.31.16.18.22.13.32.23.9.20
+32.28.1.32.28.10
+15.21.23.30.9.25
+1.20.22.26.2.6.11
+2.1.12.19.29.28.3.31.28.28.10
+14.5.13.19.25.12.32.9.13.16.12
+5.24.24.9.32.26.31
diff --git a/contrib/ltree/expected/ltree.out b/contrib/ltree/expected/ltree.out
new file mode 100644
index 00000000000..fb8efaf7783
--- /dev/null
+++ b/contrib/ltree/expected/ltree.out
@@ -0,0 +1,7371 @@
+\set ECHO none
+select ''::ltree;
+ ltree
+-------
+
+(1 row)
+
+select '1'::ltree;
+ ltree
+-------
+ 1
+(1 row)
+
+select '1.2'::ltree;
+ ltree
+-------
+ 1.2
+(1 row)
+
+select '1.2._3'::ltree;
+ ltree
+--------
+ 1.2._3
+(1 row)
+
+select subltree('Top.Child1.Child2',1,2);
+ subltree
+----------
+ Child1
+(1 row)
+
+select subpath('Top.Child1.Child2',1,2);
+ subpath
+---------------
+ Child1.Child2
+(1 row)
+
+select subpath('Top.Child1.Child2',-1,1);
+ subpath
+---------
+ Child2
+(1 row)
+
+select subpath('Top.Child1.Child2',0,-2);
+ subpath
+---------
+ Top
+(1 row)
+
+select subpath('Top.Child1.Child2',0,-1);
+ subpath
+------------
+ Top.Child1
+(1 row)
+
+select subpath('Top.Child1.Child2',0,0);
+ subpath
+-------------------
+ Top.Child1.Child2
+(1 row)
+
+select subpath('Top.Child1.Child2',1,0);
+ subpath
+---------------
+ Child1.Child2
+(1 row)
+
+select subpath('Top.Child1.Child2',0);
+ subpath
+-------------------
+ Top.Child1.Child2
+(1 row)
+
+select subpath('Top.Child1.Child2',1);
+ subpath
+---------------
+ Child1.Child2
+(1 row)
+
+select 'Top.Child1.Child2'::ltree || 'Child3'::text;
+ ?column?
+--------------------------
+ Top.Child1.Child2.Child3
+(1 row)
+
+select 'Top.Child1.Child2'::ltree || 'Child3'::ltree;
+ ?column?
+--------------------------
+ Top.Child1.Child2.Child3
+(1 row)
+
+select 'Top_0'::ltree || 'Top.Child1.Child2'::ltree;
+ ?column?
+-------------------------
+ Top_0.Top.Child1.Child2
+(1 row)
+
+select 'Top.Child1.Child2'::ltree || ''::ltree;
+ ?column?
+-------------------
+ Top.Child1.Child2
+(1 row)
+
+select ''::ltree || 'Top.Child1.Child2'::ltree;
+ ?column?
+-------------------
+ Top.Child1.Child2
+(1 row)
+
+select '1'::lquery;
+ lquery
+--------
+ 1
+(1 row)
+
+select '4|3|2'::lquery;
+ lquery
+--------
+ 4|3|2
+(1 row)
+
+select '1.2'::lquery;
+ lquery
+--------
+ 1.2
+(1 row)
+
+select '1.4|3|2'::lquery;
+ lquery
+---------
+ 1.4|3|2
+(1 row)
+
+select '1.0'::lquery;
+ lquery
+--------
+ 1.0
+(1 row)
+
+select '4|3|2.0'::lquery;
+ lquery
+---------
+ 4|3|2.0
+(1 row)
+
+select '1.2.0'::lquery;
+ lquery
+--------
+ 1.2.0
+(1 row)
+
+select '1.4|3|2.0'::lquery;
+ lquery
+-----------
+ 1.4|3|2.0
+(1 row)
+
+select '1.*'::lquery;
+ lquery
+--------
+ 1.*
+(1 row)
+
+select '4|3|2.*'::lquery;
+ lquery
+---------
+ 4|3|2.*
+(1 row)
+
+select '1.2.*'::lquery;
+ lquery
+--------
+ 1.2.*
+(1 row)
+
+select '1.4|3|2.*'::lquery;
+ lquery
+-----------
+ 1.4|3|2.*
+(1 row)
+
+select '*.1.*'::lquery;
+ lquery
+--------
+ *.1.*
+(1 row)
+
+select '*.4|3|2.*'::lquery;
+ lquery
+-----------
+ *.4|3|2.*
+(1 row)
+
+select '*.1.2.*'::lquery;
+ lquery
+---------
+ *.1.2.*
+(1 row)
+
+select '*.1.4|3|2.*'::lquery;
+ lquery
+-------------
+ *.1.4|3|2.*
+(1 row)
+
+select '1.*.4|3|2'::lquery;
+ lquery
+-----------
+ 1.*.4|3|2
+(1 row)
+
+select '1.*.4|3|2.0'::lquery;
+ lquery
+-------------
+ 1.*.4|3|2.0
+(1 row)
+
+select '1.*.4|3|2.*{1,4}'::lquery;
+ lquery
+------------------
+ 1.*.4|3|2.*{1,4}
+(1 row)
+
+select '1.*.4|3|2.*{,4}'::lquery;
+ lquery
+-----------------
+ 1.*.4|3|2.*{,4}
+(1 row)
+
+select '1.*.4|3|2.*{1,}'::lquery;
+ lquery
+-----------------
+ 1.*.4|3|2.*{1,}
+(1 row)
+
+select '1.*.4|3|2.*{1}'::lquery;
+ lquery
+----------------
+ 1.*.4|3|2.*{1}
+(1 row)
+
+select 'qwerty%@*.tu'::lquery;
+ lquery
+--------------
+ qwerty%@*.tu
+(1 row)
+
+select nlevel('1.2.3.4');
+ nlevel
+--------
+ 4
+(1 row)
+
+select '1.2'::ltree < '2.2'::ltree;
+ ?column?
+----------
+ t
+(1 row)
+
+select '1.2'::ltree <= '2.2'::ltree;
+ ?column?
+----------
+ t
+(1 row)
+
+select '2.2'::ltree = '2.2'::ltree;
+ ?column?
+----------
+ t
+(1 row)
+
+select '3.2'::ltree >= '2.2'::ltree;
+ ?column?
+----------
+ t
+(1 row)
+
+select '3.2'::ltree > '2.2'::ltree;
+ ?column?
+----------
+ t
+(1 row)
+
+select '1.2.3'::ltree @> '1.2.3.4'::ltree;
+ ?column?
+----------
+ t
+(1 row)
+
+select '1.2.3.4'::ltree @> '1.2.3.4'::ltree;
+ ?column?
+----------
+ t
+(1 row)
+
+select '1.2.3.4.5'::ltree @> '1.2.3.4'::ltree;
+ ?column?
+----------
+ f
+(1 row)
+
+select '1.3.3'::ltree @> '1.2.3.4'::ltree;
+ ?column?
+----------
+ f
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ 'a.b.c.d.e';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ 'A.b.c.d.e';
+ ?column?
+----------
+ f
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ 'A@.b.c.d.e';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'aa.b.c.d.e'::ltree ~ 'A@.b.c.d.e';
+ ?column?
+----------
+ f
+(1 row)
+
+select 'aa.b.c.d.e'::ltree ~ 'A*.b.c.d.e';
+ ?column?
+----------
+ f
+(1 row)
+
+select 'aa.b.c.d.e'::ltree ~ 'A*@.b.c.d.e';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'aa.b.c.d.e'::ltree ~ 'A*@|g.b.c.d.e';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'g.b.c.d.e'::ltree ~ 'A*@|g.b.c.d.e';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ 'a.b.c.d.e';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ 'a.*.e';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ 'a.*{3}.e';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ 'a.*{2}.e';
+ ?column?
+----------
+ f
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ 'a.*{4}.e';
+ ?column?
+----------
+ f
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ 'a.*{,4}.e';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ 'a.*{2,}.e';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ 'a.*{2,4}.e';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ 'a.*{2,3}.e';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ 'a.*{2,3}';
+ ?column?
+----------
+ f
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ 'a.*{2,4}';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ 'a.*{2,5}';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '*{2,3}.e';
+ ?column?
+----------
+ f
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '*{2,4}.e';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '*{2,5}.e';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '*.e';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '*.e.*';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '*.d.*';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '*.a.*.d.*';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '*.!d.*';
+ ?column?
+----------
+ f
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '*.!d';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '!d.*';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '!a.*';
+ ?column?
+----------
+ f
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '*.!e';
+ ?column?
+----------
+ f
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '*.!e.*';
+ ?column?
+----------
+ f
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ 'a.*.!e';
+ ?column?
+----------
+ f
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ 'a.*.!d';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ 'a.*.!d.*';
+ ?column?
+----------
+ f
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ 'a.*.!f.*';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '*.a.*.!f.*';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '*.a.*.!d.*';
+ ?column?
+----------
+ f
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '*.a.!d.*';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '*.a.!d';
+ ?column?
+----------
+ f
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ 'a.!d.*';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '*.a.*.!d.*';
+ ?column?
+----------
+ f
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '*.!b.*';
+ ?column?
+----------
+ f
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '*.!b.c.*';
+ ?column?
+----------
+ f
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '*.!b.*.c.*';
+ ?column?
+----------
+ f
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '!b.*.c.*';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '!b.b.*';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '!b.*.e';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '!b.!c.*.e';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '!b.*.!c.*.e';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '*{2}.!b.*.!c.*.e';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '*{1}.!b.*.!c.*.e';
+ ?column?
+----------
+ f
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '*{1}.!b.*{1}.!c.*.e';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ 'a.!b.*{1}.!c.*.e';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '!b.*{1}.!c.*.e';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '*.!b.*{1}.!c.*.e';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '*.!b.*.!c.*.e';
+ ?column?
+----------
+ f
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '!b.!c.*';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '!b.*.!c.*';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '*{2}.!b.*.!c.*';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '*{1}.!b.*.!c.*';
+ ?column?
+----------
+ f
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '*{1}.!b.*{1}.!c.*';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ 'a.!b.*{1}.!c.*';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '!b.*{1}.!c.*';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '*.!b.*{1}.!c.*';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'a.b.c.d.e'::ltree ~ '*.!b.*.!c.*';
+ ?column?
+----------
+ f
+(1 row)
+
+select 'QWER_TY'::ltree ~ 'q%@*';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'QWER_TY'::ltree ~ 'Q_t%@*';
+ ?column?
+----------
+ t
+(1 row)
+
+select 'QWER_GY'::ltree ~ 'q_t%@*';
+ ?column?
+----------
+ f
+(1 row)
+
+--ltxtquery
+select '!tree & aWdf@*'::ltxtquery;
+ ltxtquery
+----------------
+ !tree & aWdf@*
+(1 row)
+
+select 'tree & aw_qw%*'::ltxtquery;
+ ltxtquery
+----------------
+ tree & aw_qw%*
+(1 row)
+
+select 'ltree.awdfg'::ltree @ '!tree & aWdf@*'::ltxtquery;
+ ?column?
+----------
+ t
+(1 row)
+
+select 'tree.awdfg'::ltree @ '!tree & aWdf@*'::ltxtquery;
+ ?column?
+----------
+ f
+(1 row)
+
+select 'tree.awdfg'::ltree @ '!tree | aWdf@*'::ltxtquery;
+ ?column?
+----------
+ t
+(1 row)
+
+select 'tree.awdfg'::ltree @ 'tree | aWdf@*'::ltxtquery;
+ ?column?
+----------
+ t
+(1 row)
+
+select 'tree.awdfg'::ltree @ 'tree & aWdf@*'::ltxtquery;
+ ?column?
+----------
+ t
+(1 row)
+
+select 'tree.awdfg'::ltree @ 'tree & aWdf@'::ltxtquery;
+ ?column?
+----------
+ f
+(1 row)
+
+select 'tree.awdfg'::ltree @ 'tree & aWdf*'::ltxtquery;
+ ?column?
+----------
+ f
+(1 row)
+
+select 'tree.awdfg'::ltree @ 'tree & aWdf'::ltxtquery;
+ ?column?
+----------
+ f
+(1 row)
+
+select 'tree.awdfg'::ltree @ 'tree & awdf*'::ltxtquery;
+ ?column?
+----------
+ t
+(1 row)
+
+select 'tree.awdfg'::ltree @ 'tree & aWdfg@'::ltxtquery;
+ ?column?
+----------
+ t
+(1 row)
+
+select 'tree.awdfg_qwerty'::ltree @ 'tree & aw_qw%*'::ltxtquery;
+ ?column?
+----------
+ t
+(1 row)
+
+select 'tree.awdfg_qwerty'::ltree @ 'tree & aw_rw%*'::ltxtquery;
+ ?column?
+----------
+ f
+(1 row)
+
+--arrays
+select '{1.2.3}'::ltree[] @> '1.2.3.4';
+ ?column?
+----------
+ t
+(1 row)
+
+select '{1.2.3.4}'::ltree[] @> '1.2.3.4';
+ ?column?
+----------
+ t
+(1 row)
+
+select '{1.2.3.4.5}'::ltree[] @> '1.2.3.4';
+ ?column?
+----------
+ f
+(1 row)
+
+select '{1.3.3}'::ltree[] @> '1.2.3.4';
+ ?column?
+----------
+ f
+(1 row)
+
+select '{5.67.8, 1.2.3}'::ltree[] @> '1.2.3.4';
+ ?column?
+----------
+ t
+(1 row)
+
+select '{5.67.8, 1.2.3.4}'::ltree[] @> '1.2.3.4';
+ ?column?
+----------
+ t
+(1 row)
+
+select '{5.67.8, 1.2.3.4.5}'::ltree[] @> '1.2.3.4';
+ ?column?
+----------
+ f
+(1 row)
+
+select '{5.67.8, 1.3.3}'::ltree[] @> '1.2.3.4';
+ ?column?
+----------
+ f
+(1 row)
+
+select '{1.2.3, 7.12.asd}'::ltree[] @> '1.2.3.4';
+ ?column?
+----------
+ t
+(1 row)
+
+select '{1.2.3.4, 7.12.asd}'::ltree[] @> '1.2.3.4';
+ ?column?
+----------
+ t
+(1 row)
+
+select '{1.2.3.4.5, 7.12.asd}'::ltree[] @> '1.2.3.4';
+ ?column?
+----------
+ f
+(1 row)
+
+select '{1.3.3, 7.12.asd}'::ltree[] @> '1.2.3.4';
+ ?column?
+----------
+ f
+(1 row)
+
+select '{ltree.asd, tree.awdfg}'::ltree[] @ 'tree & aWdfg@'::ltxtquery;
+ ?column?
+----------
+ t
+(1 row)
+
+select '{j.k.l.m, g.b.c.d.e}'::ltree[] ~ 'A*@|g.b.c.d.e';
+ ?column?
+----------
+ t
+(1 row)
+
+--exractors
+select ('{3456,1.2.3.34}'::ltree[] ?@> '1.2.3.4') is null;
+ ?column?
+----------
+ t
+(1 row)
+
+select '{3456,1.2.3}'::ltree[] ?@> '1.2.3.4';
+ ?column?
+----------
+ 1.2.3
+(1 row)
+
+select '{3456,1.2.3.4}'::ltree[] ?<@ '1.2.3';
+ ?column?
+----------
+ 1.2.3.4
+(1 row)
+
+select ('{3456,1.2.3.4}'::ltree[] ?<@ '1.2.5') is null;
+ ?column?
+----------
+ t
+(1 row)
+
+select '{ltree.asd, tree.awdfg}'::ltree[] ?@ 'tree & aWdfg@'::ltxtquery;
+ ?column?
+------------
+ tree.awdfg
+(1 row)
+
+select '{j.k.l.m, g.b.c.d.e}'::ltree[] ?~ 'A*@|g.b.c.d.e';
+ ?column?
+-----------
+ g.b.c.d.e
+(1 row)
+
+create table ltreetest (t ltree);
+\copy ltreetest from 'data/ltree.data'
+select * from ltreetest where t < '12.3' order by t asc;
+ t
+----------------------------------
+
+ 1
+ 1.1
+ 1.1.1
+ 1.1.1.1
+ 1.1.1.2
+ 1.1.1.2.1
+ 1.1.2
+ 1.1.2.1
+ 1.1.3
+ 1.1.7.32.11.22
+ 1.10.21
+ 1.10.23.25.5.11
+ 1.10.4.18.22.23.24
+ 1.10.5.22.13
+ 1.11.10.19.6.1.26.17.2.22
+ 1.12.25.26.22.8.15.23
+ 1.13.16.27.11.16.30.2.9.18.4
+ 1.14.3.7.3.17.2.29
+ 1.15.17.6.28.25.24.31.27.9
+ 1.16.8.18.14.16.21.25.6
+ 1.18.29.30.22.14.3.20.15.21.20
+ 1.19.22.11.14.7.32.23.19.14
+ 1.20.18.25.3.24.25.10.9
+ 1.20.22.26.2.6.11
+ 1.21.28.4.23
+ 1.22.19.24.8.11
+ 1.22.29.5.16
+ 1.25.7.9.26.17.31.20.13
+ 1.26
+ 1.26.15.23.5.31.29.11.19.28.1
+ 1.27.22.23.2.26.32.17.7.9
+ 1.28.19.8.25.6.20.27.29.27
+ 1.28.3.22
+ 1.29.18.1.21.12.13.27.32.15
+ 1.3.15.11.11.25.24.21.19
+ 1.30.18.31.12.25.4.19.28.12.15
+ 1.30.31.31.20.16.7
+ 1.31.3
+ 1.4.14.32.14
+ 1.8
+ 1.9.18.10.1.26.22.16.17
+ 10.11.25.2.24.18.18.21.6.26.21
+ 10.12.23.22.23.22.20.17.17.9
+ 10.12.9.6.6.26.14.8.23.1.25
+ 10.13.12.8.4.8.11.30
+ 10.13.22.1.8.30.9.24.1.2.1
+ 10.15.16.3
+ 10.16.18.9.27.2.29.32.24.13
+ 10.16.19.7.15
+ 10.18.12.27.24.30.32.7.11.5.13
+ 10.2.17.26.16.7.19.6.23.3
+ 10.20
+ 10.22.1
+ 10.22.30.16.2.21.17.13
+ 10.26.27.23.4.31.11.25.29
+ 10.26.30.15.1
+ 10.27.7.24.26.11.31.20.29
+ 10.28.22.29.13.19.6.7.6.14
+ 10.28.7.16.31
+ 10.29
+ 10.29.26.4.27.17.11
+ 10.3
+ 10.3.19
+ 10.31
+ 10.31.25.31.24.16.17
+ 10.32.14
+ 10.5.23.5.32.9.18.5.30
+ 10.5.5.15.29.2
+ 10.7.9
+ 10.8.20.11.12.23.22
+ 11.1
+ 11.1.3.28.30.21.24.14
+ 11.10
+ 11.10.22.18
+ 11.11.11.4.23.21.25
+ 11.11.9.30.15.29.15.18
+ 11.12.6.21
+ 11.14.21.24.10.7.29.23.24.28
+ 11.15.11.19.29.10
+ 11.16.16.28.14
+ 11.17.10
+ 11.17.17.24.11.23.17.17.18.10.22
+ 11.18.4.8.3.13.14.28.18.31
+ 11.19.23.3.6.11
+ 11.2.27.3
+ 11.21.13.9.19
+ 11.21.16.27.16
+ 11.22.28.8.12.23.25.15.21.28
+ 11.29
+ 11.3.15.28.22.8.14
+ 11.30
+ 11.30.20.15.18.32.1.18.25.26.8
+ 11.32.18.31
+ 11.6.11.29.4.5.24.6.26.12
+ 11.7.31.15.22
+ 11.8.18
+ 12.1.1
+ 12.1.28.22.25
+ 12.10
+ 12.10.11.9.10.31.4.16.31
+ 12.11.17.1.2
+ 12.11.20.20.29
+ 12.13.16.17.29.27.16.14.9.19.9
+ 12.13.5.31
+ 12.14.20.8.28.4
+ 12.15.10.17.18.13
+ 12.16.13
+ 12.16.2.4.15
+ 12.17.10.7.17.16
+ 12.18
+ 12.2.4.28.21.30.24
+ 12.21.15.27.24.15.8.24.24.26
+ 12.21.20.20
+ 12.22.20.4.12
+ 12.23.3.19.29.15.12.6
+ 12.24.29.32.32.29.2
+ 12.25.32.2.27.3.3.16
+ 12.27.23.32.1.1.9.29.13
+ 12.27.30.12.24.2.20
+ 12.28.12.24.28.15.5.12.30.13.21
+ 12.29.17.2.20.29.1.11.19.8.12
+ 12.29.26.18.4.21.28.8.13.3
+(123 rows)
+
+select * from ltreetest where t <= '12.3' order by t asc;
+ t
+----------------------------------
+
+ 1
+ 1.1
+ 1.1.1
+ 1.1.1.1
+ 1.1.1.2
+ 1.1.1.2.1
+ 1.1.2
+ 1.1.2.1
+ 1.1.3
+ 1.1.7.32.11.22
+ 1.10.21
+ 1.10.23.25.5.11
+ 1.10.4.18.22.23.24
+ 1.10.5.22.13
+ 1.11.10.19.6.1.26.17.2.22
+ 1.12.25.26.22.8.15.23
+ 1.13.16.27.11.16.30.2.9.18.4
+ 1.14.3.7.3.17.2.29
+ 1.15.17.6.28.25.24.31.27.9
+ 1.16.8.18.14.16.21.25.6
+ 1.18.29.30.22.14.3.20.15.21.20
+ 1.19.22.11.14.7.32.23.19.14
+ 1.20.18.25.3.24.25.10.9
+ 1.20.22.26.2.6.11
+ 1.21.28.4.23
+ 1.22.19.24.8.11
+ 1.22.29.5.16
+ 1.25.7.9.26.17.31.20.13
+ 1.26
+ 1.26.15.23.5.31.29.11.19.28.1
+ 1.27.22.23.2.26.32.17.7.9
+ 1.28.19.8.25.6.20.27.29.27
+ 1.28.3.22
+ 1.29.18.1.21.12.13.27.32.15
+ 1.3.15.11.11.25.24.21.19
+ 1.30.18.31.12.25.4.19.28.12.15
+ 1.30.31.31.20.16.7
+ 1.31.3
+ 1.4.14.32.14
+ 1.8
+ 1.9.18.10.1.26.22.16.17
+ 10.11.25.2.24.18.18.21.6.26.21
+ 10.12.23.22.23.22.20.17.17.9
+ 10.12.9.6.6.26.14.8.23.1.25
+ 10.13.12.8.4.8.11.30
+ 10.13.22.1.8.30.9.24.1.2.1
+ 10.15.16.3
+ 10.16.18.9.27.2.29.32.24.13
+ 10.16.19.7.15
+ 10.18.12.27.24.30.32.7.11.5.13
+ 10.2.17.26.16.7.19.6.23.3
+ 10.20
+ 10.22.1
+ 10.22.30.16.2.21.17.13
+ 10.26.27.23.4.31.11.25.29
+ 10.26.30.15.1
+ 10.27.7.24.26.11.31.20.29
+ 10.28.22.29.13.19.6.7.6.14
+ 10.28.7.16.31
+ 10.29
+ 10.29.26.4.27.17.11
+ 10.3
+ 10.3.19
+ 10.31
+ 10.31.25.31.24.16.17
+ 10.32.14
+ 10.5.23.5.32.9.18.5.30
+ 10.5.5.15.29.2
+ 10.7.9
+ 10.8.20.11.12.23.22
+ 11.1
+ 11.1.3.28.30.21.24.14
+ 11.10
+ 11.10.22.18
+ 11.11.11.4.23.21.25
+ 11.11.9.30.15.29.15.18
+ 11.12.6.21
+ 11.14.21.24.10.7.29.23.24.28
+ 11.15.11.19.29.10
+ 11.16.16.28.14
+ 11.17.10
+ 11.17.17.24.11.23.17.17.18.10.22
+ 11.18.4.8.3.13.14.28.18.31
+ 11.19.23.3.6.11
+ 11.2.27.3
+ 11.21.13.9.19
+ 11.21.16.27.16
+ 11.22.28.8.12.23.25.15.21.28
+ 11.29
+ 11.3.15.28.22.8.14
+ 11.30
+ 11.30.20.15.18.32.1.18.25.26.8
+ 11.32.18.31
+ 11.6.11.29.4.5.24.6.26.12
+ 11.7.31.15.22
+ 11.8.18
+ 12.1.1
+ 12.1.28.22.25
+ 12.10
+ 12.10.11.9.10.31.4.16.31
+ 12.11.17.1.2
+ 12.11.20.20.29
+ 12.13.16.17.29.27.16.14.9.19.9
+ 12.13.5.31
+ 12.14.20.8.28.4
+ 12.15.10.17.18.13
+ 12.16.13
+ 12.16.2.4.15
+ 12.17.10.7.17.16
+ 12.18
+ 12.2.4.28.21.30.24
+ 12.21.15.27.24.15.8.24.24.26
+ 12.21.20.20
+ 12.22.20.4.12
+ 12.23.3.19.29.15.12.6
+ 12.24.29.32.32.29.2
+ 12.25.32.2.27.3.3.16
+ 12.27.23.32.1.1.9.29.13
+ 12.27.30.12.24.2.20
+ 12.28.12.24.28.15.5.12.30.13.21
+ 12.29.17.2.20.29.1.11.19.8.12
+ 12.29.26.18.4.21.28.8.13.3
+ 12.3
+(124 rows)
+
+select * from ltreetest where t = '12.3' order by t asc;
+ t
+------
+ 12.3
+(1 row)
+
+select * from ltreetest where t >= '12.3' order by t asc;
+ t
+----------------------------------
+ 12.3
+ 12.4.10.17.4.10.23.3
+ 12.4.12.13.25.30.30.8.9.12
+ 12.4.24.6.1.13.5.20
+ 12.4.26.23.25.5.15.7.16
+ 12.6.14.23.19.21.9.12
+ 12.7.16.8.21.22.2.16.18
+ 12.7.28.26.14.21.18.31.5.15.11
+ 13.1.6.17.28.9.15.30.1.27.14
+ 13.12
+ 13.14.13.10.28.26.9.18.27.21
+ 13.16.1.27.18.18.19.6.14.4
+ 13.16.4.28
+ 13.17.7
+ 13.19.2.6.23.19.9.7.21.8.16
+ 13.24
+ 13.25.10.25.8.16
+ 13.26.17.3.2.19
+ 13.28.12.6
+ 13.28.14.2.8.18
+ 13.28.9.3
+ 13.3.20
+ 13.3.8
+ 13.30.24
+ 13.32.15.32.26.14.32
+ 13.7
+ 13.8.15.3.7.31.5.10.15.30
+ 13.8.20.9.21
+ 13.8.23.13.11.18.24.21.11.24.10
+ 13.9.9.27.31.11.25.9.27.22.13
+ 14.1.11
+ 14.1.15.25.27.23.25.26.28.10
+ 14.10.11.30.5.7.6.24.9.30.26
+ 14.11.25
+ 14.12.31
+ 14.13.9.13.11.5.5.2.2.32.12
+ 14.14.25
+ 14.15.31.29
+ 14.16.6.29.26.13.14.16.25.26.8
+ 14.17.7.30.8.25.26.4
+ 14.19.20.13.27.2.2
+ 14.19.26.15.22.23
+ 14.19.30.6.4.10.10.10.22.25.11
+ 14.2.14.11.12
+ 14.21.22
+ 14.21.5.28.3.32.24.14.25.31
+ 14.21.6.5.26.9.32.16.25
+ 14.23.31.5.5.15.17.12.17.7.3
+ 14.24
+ 14.26.25.4.12.26.8
+ 14.27.29.23.4.1.17.32.6.25.22
+ 14.29
+ 14.3.17.1.14.15.21.4.26
+ 14.30.13.5.26.9.22.23.14.10
+ 14.30.2.21.15.16.13
+ 14.30.23.3
+ 14.4.19.27.28.24.19
+ 14.4.23.4.23.22.11.6.26.5
+ 14.5.13.19.25.12.32.9.13.16.12
+ 14.6.10.29.25.26.20.24.24
+ 14.8.15.30.7.29.27.31.4
+ 14.9.15.21.21.31.1.29
+ 15.1.6.31.30.13.32.9.10
+ 15.1.8
+ 15.10.30.1.4.12.8.20
+ 15.11.26.1.30.6.23.5
+ 15.17
+ 15.17.2.32.7
+ 15.21.22
+ 15.21.23.30.9.25
+ 15.23.26.20.27.7
+ 15.25.31.11.4.22.16.7.11
+ 15.26.24.31.16.15.17.22.8.30.3
+ 15.28.24
+ 15.28.30.19.31.6.2.2.31
+ 15.29.25
+ 15.29.32.16.29.12.20.32.13.20
+ 15.3.31.9.27.14.9.8.14.6.32
+ 15.30.17.5.32.28.2.18.27
+ 15.31.11.27.19.19.20.5.5
+ 15.4.15
+ 15.5.1.31.28.10.8
+ 15.6.19.3
+ 15.7.3.14.23.19.26
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+
+select * from ltreetest where t > '12.3' order by t asc;
+ t
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+ 8.16.30.29.19.22.28.24.2
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+ 9.10.32
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+ 9.17.13.31.7
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+ 9.21.28.8.12.15.3.13.10.11
+ 9.22.10.15.5.15
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+ 9.7.31.11.8.23
+ 9.8.23.2.20.16
+ 9.9.13.9.14.27
+(882 rows)
+
+select * from ltreetest where t @> '1.1.1' order by t asc;
+ t
+-------
+
+ 1
+ 1.1
+ 1.1.1
+(4 rows)
+
+select * from ltreetest where t <@ '1.1.1' order by t asc;
+ t
+-----------
+ 1.1.1
+ 1.1.1.1
+ 1.1.1.2
+ 1.1.1.2.1
+(4 rows)
+
+select * from ltreetest where t ~ '1.1.1.*' order by t asc;
+ t
+-----------
+ 1.1.1
+ 1.1.1.1
+ 1.1.1.2
+ 1.1.1.2.1
+(4 rows)
+
+select * from ltreetest where t ~ '*.1' order by t asc;
+ t
+--------------------------------
+ 1
+ 10.22.1
+ 10.26.30.15.1
+ 11.1
+ 17.25.2.13.10.27.13.1
+ 18.13.6.12.26.26.26.29.18.20.1
+ 19.20.25.7.27.28.27.17.9.3.1
+ 19.9.32.23.13.24.1
+ 20.17.18.21.1
+ 20.4.27.31.1
+ 21.18.2.1
+ 21.23.17.8.23.11.8.1
+ 22.30.31.24.23.22.5.20.28.1
+ 23.28.1
+ 23.3.32.21.5.14.10.17.1
+ 25.6.12.16.1
+ 29.1
+ 29.15.29.8.31.26.1
+ 32.31.11.22.1
+ 4.7.1
+ 6.27.29.14.8.12.26.3.21.4.1
+ 8.13.1
+ 8.2.18.23.5.16.17.1
+ 8.32.30.1
+ 9.21.20.29.1
+(25 rows)
+
+select * from ltreetest where t ~ '23.*.1' order by t asc;
+ t
+-------------------------
+ 23.28.1
+ 23.3.32.21.5.14.10.17.1
+(2 rows)
+
+select * from ltreetest where t ~ '23.*{1}.1' order by t asc;
+ t
+---------
+ 23.28.1
+(1 row)
+
+select * from ltreetest where t @ '23 & 1' order by t asc;
+ t
+--------------------------------
+ 1.10.23.25.5.11
+ 1.10.4.18.22.23.24
+ 1.12.25.26.22.8.15.23
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+ 15.11.26.1.30.6.23.5
+ 19.22.29.32.1.21.26.24.23.17
+ 19.9.32.23.13.24.1
+ 21.23.17.8.23.11.8.1
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+ 23.1.23.18.12.29
+ 23.12.1.5.32.25.8.24.1.25
+ 23.12.32.22.19.1.22.4
+ 23.17.22.1.23.4.29.32.4.1
+ 23.17.25.4.1.16.29.10
+ 23.19.17.31.29.13.1.12.5.25
+ 23.22.10.1.14.24
+ 23.28.1
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+ 27.29.1.5.30.6.22.16.23.2.28
+ 28.23.2.30.3.8.1.15.15.14.13
+ 29.23.1.21.31.8
+ 29.23.15.25.1.6.6.10
+ 30.23.10.1.10.7.22.28.18.11.17
+ 31.30.23.7.7.24.32.10.11.1.31
+ 32.1.23.20.14.12.23.5.32.15
+ 32.15.20.28.5.1.23.4
+ 5.13.23.19.28.26.27.6.1.22
+ 6.18.1.4.18.23
+ 7.23.1.24.29.13.31.19.23.17.7
+ 8.16.1.16.28.6.3.22.6.23
+ 8.2.18.23.5.16.17.1
+ 9.5.9.3.23.9.25.14.1.29.28
+(39 rows)
+
+create unique index tstidx on ltreetest (t);
+set enable_seqscan=off;
+select * from ltreetest where t < '12.3' order by t asc;
+ t
+----------------------------------
+
+ 1
+ 1.1
+ 1.1.1
+ 1.1.1.1
+ 1.1.1.2
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+ 1.28.3.22
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+ 10.26.30.15.1
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+ 10.28.22.29.13.19.6.7.6.14
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+ 10.3
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+ 10.32.14
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+ 10.5.5.15.29.2
+ 10.7.9
+ 10.8.20.11.12.23.22
+ 11.1
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+ 11.10
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+ 11.12.6.21
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+ 11.15.11.19.29.10
+ 11.16.16.28.14
+ 11.17.10
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+ 11.18.4.8.3.13.14.28.18.31
+ 11.19.23.3.6.11
+ 11.2.27.3
+ 11.21.13.9.19
+ 11.21.16.27.16
+ 11.22.28.8.12.23.25.15.21.28
+ 11.29
+ 11.3.15.28.22.8.14
+ 11.30
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+ 11.32.18.31
+ 11.6.11.29.4.5.24.6.26.12
+ 11.7.31.15.22
+ 11.8.18
+ 12.1.1
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+ 12.10
+ 12.10.11.9.10.31.4.16.31
+ 12.11.17.1.2
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+ 12.13.16.17.29.27.16.14.9.19.9
+ 12.13.5.31
+ 12.14.20.8.28.4
+ 12.15.10.17.18.13
+ 12.16.13
+ 12.16.2.4.15
+ 12.17.10.7.17.16
+ 12.18
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+ 12.21.15.27.24.15.8.24.24.26
+ 12.21.20.20
+ 12.22.20.4.12
+ 12.23.3.19.29.15.12.6
+ 12.24.29.32.32.29.2
+ 12.25.32.2.27.3.3.16
+ 12.27.23.32.1.1.9.29.13
+ 12.27.30.12.24.2.20
+ 12.28.12.24.28.15.5.12.30.13.21
+ 12.29.17.2.20.29.1.11.19.8.12
+ 12.29.26.18.4.21.28.8.13.3
+(123 rows)
+
+select * from ltreetest where t <= '12.3' order by t asc;
+ t
+----------------------------------
+
+ 1
+ 1.1
+ 1.1.1
+ 1.1.1.1
+ 1.1.1.2
+ 1.1.1.2.1
+ 1.1.2
+ 1.1.2.1
+ 1.1.3
+ 1.1.7.32.11.22
+ 1.10.21
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+ 1.10.4.18.22.23.24
+ 1.10.5.22.13
+ 1.11.10.19.6.1.26.17.2.22
+ 1.12.25.26.22.8.15.23
+ 1.13.16.27.11.16.30.2.9.18.4
+ 1.14.3.7.3.17.2.29
+ 1.15.17.6.28.25.24.31.27.9
+ 1.16.8.18.14.16.21.25.6
+ 1.18.29.30.22.14.3.20.15.21.20
+ 1.19.22.11.14.7.32.23.19.14
+ 1.20.18.25.3.24.25.10.9
+ 1.20.22.26.2.6.11
+ 1.21.28.4.23
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+ 1.22.29.5.16
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+ 1.26
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+ 1.27.22.23.2.26.32.17.7.9
+ 1.28.19.8.25.6.20.27.29.27
+ 1.28.3.22
+ 1.29.18.1.21.12.13.27.32.15
+ 1.3.15.11.11.25.24.21.19
+ 1.30.18.31.12.25.4.19.28.12.15
+ 1.30.31.31.20.16.7
+ 1.31.3
+ 1.4.14.32.14
+ 1.8
+ 1.9.18.10.1.26.22.16.17
+ 10.11.25.2.24.18.18.21.6.26.21
+ 10.12.23.22.23.22.20.17.17.9
+ 10.12.9.6.6.26.14.8.23.1.25
+ 10.13.12.8.4.8.11.30
+ 10.13.22.1.8.30.9.24.1.2.1
+ 10.15.16.3
+ 10.16.18.9.27.2.29.32.24.13
+ 10.16.19.7.15
+ 10.18.12.27.24.30.32.7.11.5.13
+ 10.2.17.26.16.7.19.6.23.3
+ 10.20
+ 10.22.1
+ 10.22.30.16.2.21.17.13
+ 10.26.27.23.4.31.11.25.29
+ 10.26.30.15.1
+ 10.27.7.24.26.11.31.20.29
+ 10.28.22.29.13.19.6.7.6.14
+ 10.28.7.16.31
+ 10.29
+ 10.29.26.4.27.17.11
+ 10.3
+ 10.3.19
+ 10.31
+ 10.31.25.31.24.16.17
+ 10.32.14
+ 10.5.23.5.32.9.18.5.30
+ 10.5.5.15.29.2
+ 10.7.9
+ 10.8.20.11.12.23.22
+ 11.1
+ 11.1.3.28.30.21.24.14
+ 11.10
+ 11.10.22.18
+ 11.11.11.4.23.21.25
+ 11.11.9.30.15.29.15.18
+ 11.12.6.21
+ 11.14.21.24.10.7.29.23.24.28
+ 11.15.11.19.29.10
+ 11.16.16.28.14
+ 11.17.10
+ 11.17.17.24.11.23.17.17.18.10.22
+ 11.18.4.8.3.13.14.28.18.31
+ 11.19.23.3.6.11
+ 11.2.27.3
+ 11.21.13.9.19
+ 11.21.16.27.16
+ 11.22.28.8.12.23.25.15.21.28
+ 11.29
+ 11.3.15.28.22.8.14
+ 11.30
+ 11.30.20.15.18.32.1.18.25.26.8
+ 11.32.18.31
+ 11.6.11.29.4.5.24.6.26.12
+ 11.7.31.15.22
+ 11.8.18
+ 12.1.1
+ 12.1.28.22.25
+ 12.10
+ 12.10.11.9.10.31.4.16.31
+ 12.11.17.1.2
+ 12.11.20.20.29
+ 12.13.16.17.29.27.16.14.9.19.9
+ 12.13.5.31
+ 12.14.20.8.28.4
+ 12.15.10.17.18.13
+ 12.16.13
+ 12.16.2.4.15
+ 12.17.10.7.17.16
+ 12.18
+ 12.2.4.28.21.30.24
+ 12.21.15.27.24.15.8.24.24.26
+ 12.21.20.20
+ 12.22.20.4.12
+ 12.23.3.19.29.15.12.6
+ 12.24.29.32.32.29.2
+ 12.25.32.2.27.3.3.16
+ 12.27.23.32.1.1.9.29.13
+ 12.27.30.12.24.2.20
+ 12.28.12.24.28.15.5.12.30.13.21
+ 12.29.17.2.20.29.1.11.19.8.12
+ 12.29.26.18.4.21.28.8.13.3
+ 12.3
+(124 rows)
+
+select * from ltreetest where t = '12.3' order by t asc;
+ t
+------
+ 12.3
+(1 row)
+
+select * from ltreetest where t >= '12.3' order by t asc;
+ t
+----------------------------------
+ 12.3
+ 12.4.10.17.4.10.23.3
+ 12.4.12.13.25.30.30.8.9.12
+ 12.4.24.6.1.13.5.20
+ 12.4.26.23.25.5.15.7.16
+ 12.6.14.23.19.21.9.12
+ 12.7.16.8.21.22.2.16.18
+ 12.7.28.26.14.21.18.31.5.15.11
+ 13.1.6.17.28.9.15.30.1.27.14
+ 13.12
+ 13.14.13.10.28.26.9.18.27.21
+ 13.16.1.27.18.18.19.6.14.4
+ 13.16.4.28
+ 13.17.7
+ 13.19.2.6.23.19.9.7.21.8.16
+ 13.24
+ 13.25.10.25.8.16
+ 13.26.17.3.2.19
+ 13.28.12.6
+ 13.28.14.2.8.18
+ 13.28.9.3
+ 13.3.20
+ 13.3.8
+ 13.30.24
+ 13.32.15.32.26.14.32
+ 13.7
+ 13.8.15.3.7.31.5.10.15.30
+ 13.8.20.9.21
+ 13.8.23.13.11.18.24.21.11.24.10
+ 13.9.9.27.31.11.25.9.27.22.13
+ 14.1.11
+ 14.1.15.25.27.23.25.26.28.10
+ 14.10.11.30.5.7.6.24.9.30.26
+ 14.11.25
+ 14.12.31
+ 14.13.9.13.11.5.5.2.2.32.12
+ 14.14.25
+ 14.15.31.29
+ 14.16.6.29.26.13.14.16.25.26.8
+ 14.17.7.30.8.25.26.4
+ 14.19.20.13.27.2.2
+ 14.19.26.15.22.23
+ 14.19.30.6.4.10.10.10.22.25.11
+ 14.2.14.11.12
+ 14.21.22
+ 14.21.5.28.3.32.24.14.25.31
+ 14.21.6.5.26.9.32.16.25
+ 14.23.31.5.5.15.17.12.17.7.3
+ 14.24
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+ 14.27.29.23.4.1.17.32.6.25.22
+ 14.29
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+ 14.6.10.29.25.26.20.24.24
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+ 15.11.26.1.30.6.23.5
+ 15.17
+ 15.17.2.32.7
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+ 15.9.8.20.27
+ 16.13.19.11.18.13.17.17
+ 16.13.2.19.14.29.31.30.23.15.12
+ 16.13.26.18.9.29.11.17.1.24.26
+ 16.14.3.17.17.26.12.19.19.30
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+ 16.2.14.3.26.11
+ 16.20.29.26
+ 16.21.13.1.4
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+ 16.24.3.30.15.22.31.2
+ 16.24.7.25
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+ 16.28
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+
+select * from ltreetest where t > '12.3' order by t asc;
+ t
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+ 8.27.3.4.12.26.16
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+ 9.17.13.31.7
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+ 9.19.7.13.13.25
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+ 9.21.28.8.12.15.3.13.10.11
+ 9.22.10.15.5.15
+ 9.23.21.22.5.29.15.21
+ 9.26.1.16
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+ 9.28.24
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+ 9.3.3
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+ 9.30
+ 9.31.23.19.5.10.16.4.30.24.5
+ 9.31.4.14.31.10.17.5.2
+ 9.5
+ 9.5.9.3.23.9.25.14.1.29.28
+ 9.6.9.21.6.11.29.13.29.20.32
+ 9.7.31.11.8.23
+ 9.8.23.2.20.16
+ 9.9.13.9.14.27
+(882 rows)
+
+drop index tstidx;
+create index tstidx on ltreetest using gist (t);
+set enable_seqscan=off;
+select * from ltreetest where t < '12.3' order by t asc;
+ t
+----------------------------------
+
+ 1
+ 1.1
+ 1.1.1
+ 1.1.1.1
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+ 1.1.2
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+ 1.10.4.18.22.23.24
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+ 1.12.25.26.22.8.15.23
+ 1.13.16.27.11.16.30.2.9.18.4
+ 1.14.3.7.3.17.2.29
+ 1.15.17.6.28.25.24.31.27.9
+ 1.16.8.18.14.16.21.25.6
+ 1.18.29.30.22.14.3.20.15.21.20
+ 1.19.22.11.14.7.32.23.19.14
+ 1.20.18.25.3.24.25.10.9
+ 1.20.22.26.2.6.11
+ 1.21.28.4.23
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+ 1.26
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+ 1.27.22.23.2.26.32.17.7.9
+ 1.28.19.8.25.6.20.27.29.27
+ 1.28.3.22
+ 1.29.18.1.21.12.13.27.32.15
+ 1.3.15.11.11.25.24.21.19
+ 1.30.18.31.12.25.4.19.28.12.15
+ 1.30.31.31.20.16.7
+ 1.31.3
+ 1.4.14.32.14
+ 1.8
+ 1.9.18.10.1.26.22.16.17
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+ 10.12.23.22.23.22.20.17.17.9
+ 10.12.9.6.6.26.14.8.23.1.25
+ 10.13.12.8.4.8.11.30
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+ 10.16.19.7.15
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+ 10.2.17.26.16.7.19.6.23.3
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+ 10.26.30.15.1
+ 10.27.7.24.26.11.31.20.29
+ 10.28.22.29.13.19.6.7.6.14
+ 10.28.7.16.31
+ 10.29
+ 10.29.26.4.27.17.11
+ 10.3
+ 10.3.19
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+ 10.32.14
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+ 10.5.5.15.29.2
+ 10.7.9
+ 10.8.20.11.12.23.22
+ 11.1
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+ 11.12.6.21
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+ 11.15.11.19.29.10
+ 11.16.16.28.14
+ 11.17.10
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+ 11.18.4.8.3.13.14.28.18.31
+ 11.19.23.3.6.11
+ 11.2.27.3
+ 11.21.13.9.19
+ 11.21.16.27.16
+ 11.22.28.8.12.23.25.15.21.28
+ 11.29
+ 11.3.15.28.22.8.14
+ 11.30
+ 11.30.20.15.18.32.1.18.25.26.8
+ 11.32.18.31
+ 11.6.11.29.4.5.24.6.26.12
+ 11.7.31.15.22
+ 11.8.18
+ 12.1.1
+ 12.1.28.22.25
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+ 12.11.17.1.2
+ 12.11.20.20.29
+ 12.13.16.17.29.27.16.14.9.19.9
+ 12.13.5.31
+ 12.14.20.8.28.4
+ 12.15.10.17.18.13
+ 12.16.13
+ 12.16.2.4.15
+ 12.17.10.7.17.16
+ 12.18
+ 12.2.4.28.21.30.24
+ 12.21.15.27.24.15.8.24.24.26
+ 12.21.20.20
+ 12.22.20.4.12
+ 12.23.3.19.29.15.12.6
+ 12.24.29.32.32.29.2
+ 12.25.32.2.27.3.3.16
+ 12.27.23.32.1.1.9.29.13
+ 12.27.30.12.24.2.20
+ 12.28.12.24.28.15.5.12.30.13.21
+ 12.29.17.2.20.29.1.11.19.8.12
+ 12.29.26.18.4.21.28.8.13.3
+(123 rows)
+
+select * from ltreetest where t <= '12.3' order by t asc;
+ t
+----------------------------------
+
+ 1
+ 1.1
+ 1.1.1
+ 1.1.1.1
+ 1.1.1.2
+ 1.1.1.2.1
+ 1.1.2
+ 1.1.2.1
+ 1.1.3
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+ 1.10.21
+ 1.10.23.25.5.11
+ 1.10.4.18.22.23.24
+ 1.10.5.22.13
+ 1.11.10.19.6.1.26.17.2.22
+ 1.12.25.26.22.8.15.23
+ 1.13.16.27.11.16.30.2.9.18.4
+ 1.14.3.7.3.17.2.29
+ 1.15.17.6.28.25.24.31.27.9
+ 1.16.8.18.14.16.21.25.6
+ 1.18.29.30.22.14.3.20.15.21.20
+ 1.19.22.11.14.7.32.23.19.14
+ 1.20.18.25.3.24.25.10.9
+ 1.20.22.26.2.6.11
+ 1.21.28.4.23
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+ 1.22.29.5.16
+ 1.25.7.9.26.17.31.20.13
+ 1.26
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+ 1.27.22.23.2.26.32.17.7.9
+ 1.28.19.8.25.6.20.27.29.27
+ 1.28.3.22
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+ 1.3.15.11.11.25.24.21.19
+ 1.30.18.31.12.25.4.19.28.12.15
+ 1.30.31.31.20.16.7
+ 1.31.3
+ 1.4.14.32.14
+ 1.8
+ 1.9.18.10.1.26.22.16.17
+ 10.11.25.2.24.18.18.21.6.26.21
+ 10.12.23.22.23.22.20.17.17.9
+ 10.12.9.6.6.26.14.8.23.1.25
+ 10.13.12.8.4.8.11.30
+ 10.13.22.1.8.30.9.24.1.2.1
+ 10.15.16.3
+ 10.16.18.9.27.2.29.32.24.13
+ 10.16.19.7.15
+ 10.18.12.27.24.30.32.7.11.5.13
+ 10.2.17.26.16.7.19.6.23.3
+ 10.20
+ 10.22.1
+ 10.22.30.16.2.21.17.13
+ 10.26.27.23.4.31.11.25.29
+ 10.26.30.15.1
+ 10.27.7.24.26.11.31.20.29
+ 10.28.22.29.13.19.6.7.6.14
+ 10.28.7.16.31
+ 10.29
+ 10.29.26.4.27.17.11
+ 10.3
+ 10.3.19
+ 10.31
+ 10.31.25.31.24.16.17
+ 10.32.14
+ 10.5.23.5.32.9.18.5.30
+ 10.5.5.15.29.2
+ 10.7.9
+ 10.8.20.11.12.23.22
+ 11.1
+ 11.1.3.28.30.21.24.14
+ 11.10
+ 11.10.22.18
+ 11.11.11.4.23.21.25
+ 11.11.9.30.15.29.15.18
+ 11.12.6.21
+ 11.14.21.24.10.7.29.23.24.28
+ 11.15.11.19.29.10
+ 11.16.16.28.14
+ 11.17.10
+ 11.17.17.24.11.23.17.17.18.10.22
+ 11.18.4.8.3.13.14.28.18.31
+ 11.19.23.3.6.11
+ 11.2.27.3
+ 11.21.13.9.19
+ 11.21.16.27.16
+ 11.22.28.8.12.23.25.15.21.28
+ 11.29
+ 11.3.15.28.22.8.14
+ 11.30
+ 11.30.20.15.18.32.1.18.25.26.8
+ 11.32.18.31
+ 11.6.11.29.4.5.24.6.26.12
+ 11.7.31.15.22
+ 11.8.18
+ 12.1.1
+ 12.1.28.22.25
+ 12.10
+ 12.10.11.9.10.31.4.16.31
+ 12.11.17.1.2
+ 12.11.20.20.29
+ 12.13.16.17.29.27.16.14.9.19.9
+ 12.13.5.31
+ 12.14.20.8.28.4
+ 12.15.10.17.18.13
+ 12.16.13
+ 12.16.2.4.15
+ 12.17.10.7.17.16
+ 12.18
+ 12.2.4.28.21.30.24
+ 12.21.15.27.24.15.8.24.24.26
+ 12.21.20.20
+ 12.22.20.4.12
+ 12.23.3.19.29.15.12.6
+ 12.24.29.32.32.29.2
+ 12.25.32.2.27.3.3.16
+ 12.27.23.32.1.1.9.29.13
+ 12.27.30.12.24.2.20
+ 12.28.12.24.28.15.5.12.30.13.21
+ 12.29.17.2.20.29.1.11.19.8.12
+ 12.29.26.18.4.21.28.8.13.3
+ 12.3
+(124 rows)
+
+select * from ltreetest where t = '12.3' order by t asc;
+ t
+------
+ 12.3
+(1 row)
+
+select * from ltreetest where t >= '12.3' order by t asc;
+ t
+----------------------------------
+ 12.3
+ 12.4.10.17.4.10.23.3
+ 12.4.12.13.25.30.30.8.9.12
+ 12.4.24.6.1.13.5.20
+ 12.4.26.23.25.5.15.7.16
+ 12.6.14.23.19.21.9.12
+ 12.7.16.8.21.22.2.16.18
+ 12.7.28.26.14.21.18.31.5.15.11
+ 13.1.6.17.28.9.15.30.1.27.14
+ 13.12
+ 13.14.13.10.28.26.9.18.27.21
+ 13.16.1.27.18.18.19.6.14.4
+ 13.16.4.28
+ 13.17.7
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+ 13.24
+ 13.25.10.25.8.16
+ 13.26.17.3.2.19
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+ 13.28.9.3
+ 13.3.20
+ 13.3.8
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+ 13.32.15.32.26.14.32
+ 13.7
+ 13.8.15.3.7.31.5.10.15.30
+ 13.8.20.9.21
+ 13.8.23.13.11.18.24.21.11.24.10
+ 13.9.9.27.31.11.25.9.27.22.13
+ 14.1.11
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+ 14.10.11.30.5.7.6.24.9.30.26
+ 14.11.25
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+ 14.14.25
+ 14.15.31.29
+ 14.16.6.29.26.13.14.16.25.26.8
+ 14.17.7.30.8.25.26.4
+ 14.19.20.13.27.2.2
+ 14.19.26.15.22.23
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+ 14.2.14.11.12
+ 14.21.22
+ 14.21.5.28.3.32.24.14.25.31
+ 14.21.6.5.26.9.32.16.25
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+ 15.1.6.31.30.13.32.9.10
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+ 15.11.26.1.30.6.23.5
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+
+select * from ltreetest where t > '12.3' order by t asc;
+ t
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+(882 rows)
+
+select * from ltreetest where t @> '1.1.1' order by t asc;
+ t
+-------
+
+ 1
+ 1.1
+ 1.1.1
+(4 rows)
+
+select * from ltreetest where t <@ '1.1.1' order by t asc;
+ t
+-----------
+ 1.1.1
+ 1.1.1.1
+ 1.1.1.2
+ 1.1.1.2.1
+(4 rows)
+
+select * from ltreetest where t ~ '1.1.1.*' order by t asc;
+ t
+-----------
+ 1.1.1
+ 1.1.1.1
+ 1.1.1.2
+ 1.1.1.2.1
+(4 rows)
+
+select * from ltreetest where t ~ '*.1' order by t asc;
+ t
+--------------------------------
+ 1
+ 10.22.1
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+ 8.32.30.1
+ 9.21.20.29.1
+(25 rows)
+
+select * from ltreetest where t ~ '23.*.1' order by t asc;
+ t
+-------------------------
+ 23.28.1
+ 23.3.32.21.5.14.10.17.1
+(2 rows)
+
+select * from ltreetest where t ~ '23.*{1}.1' order by t asc;
+ t
+---------
+ 23.28.1
+(1 row)
+
+select * from ltreetest where t @ '23 & 1' order by t asc;
+ t
+--------------------------------
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+ 23.28.1
+ 23.3.32.21.5.14.10.17.1
+ 27.29.1.5.30.6.22.16.23.2.28
+ 28.23.2.30.3.8.1.15.15.14.13
+ 29.23.1.21.31.8
+ 29.23.15.25.1.6.6.10
+ 30.23.10.1.10.7.22.28.18.11.17
+ 31.30.23.7.7.24.32.10.11.1.31
+ 32.1.23.20.14.12.23.5.32.15
+ 32.15.20.28.5.1.23.4
+ 5.13.23.19.28.26.27.6.1.22
+ 6.18.1.4.18.23
+ 7.23.1.24.29.13.31.19.23.17.7
+ 8.16.1.16.28.6.3.22.6.23
+ 8.2.18.23.5.16.17.1
+ 9.5.9.3.23.9.25.14.1.29.28
+(39 rows)
+
+create table _ltreetest (t ltree[]);
+\copy _ltreetest from 'data/_ltree.data'
+select count(*) from _ltreetest where t @> '1.1.1' ;
+ count
+-------
+ 15
+(1 row)
+
+select count(*) from _ltreetest where t <@ '1.1.1' ;
+ count
+-------
+ 19
+(1 row)
+
+select count(*) from _ltreetest where t ~ '1.1.1.*' ;
+ count
+-------
+ 19
+(1 row)
+
+select count(*) from _ltreetest where t ~ '*.1' ;
+ count
+-------
+ 83
+(1 row)
+
+select count(*) from _ltreetest where t ~ '23.*.1' ;
+ count
+-------
+ 10
+(1 row)
+
+select count(*) from _ltreetest where t ~ '23.*{1}.1' ;
+ count
+-------
+ 5
+(1 row)
+
+select count(*) from _ltreetest where t @ '23 & 1' ;
+ count
+-------
+ 147
+(1 row)
+
+create index _tstidx on _ltreetest using gist (t);
+set enable_seqscan=off;
+select count(*) from _ltreetest where t @> '1.1.1' ;
+ count
+-------
+ 15
+(1 row)
+
+select count(*) from _ltreetest where t <@ '1.1.1' ;
+ count
+-------
+ 19
+(1 row)
+
+select count(*) from _ltreetest where t ~ '1.1.1.*' ;
+ count
+-------
+ 19
+(1 row)
+
+select count(*) from _ltreetest where t ~ '*.1' ;
+ count
+-------
+ 83
+(1 row)
+
+select count(*) from _ltreetest where t ~ '23.*.1' ;
+ count
+-------
+ 10
+(1 row)
+
+select count(*) from _ltreetest where t ~ '23.*{1}.1' ;
+ count
+-------
+ 5
+(1 row)
+
+select count(*) from _ltreetest where t @ '23 & 1' ;
+ count
+-------
+ 147
+(1 row)
+
diff --git a/contrib/ltree/lquery_op.c b/contrib/ltree/lquery_op.c
new file mode 100644
index 00000000000..83b380d97ae
--- /dev/null
+++ b/contrib/ltree/lquery_op.c
@@ -0,0 +1,240 @@
+/*
+ * op function for ltree and lquery
+ * Teodor Sigaev <teodor@stack.net>
+ */
+
+#include "ltree.h"
+#include <ctype.h>
+
+PG_FUNCTION_INFO_V1(ltq_regex);
+PG_FUNCTION_INFO_V1(ltq_rregex);
+
+typedef struct {
+ lquery_level *q;
+ int nq;
+ ltree_level *t;
+ int nt;
+ int posq;
+ int post;
+} FieldNot;
+
+static char *
+getlexem(char *start, char *end, int *len) {
+ char *ptr;
+
+ while( start<end && *start == '_' )
+ start++;
+
+ ptr = start;
+ if ( ptr == end )
+ return NULL;
+
+ while( ptr < end && *ptr != '_')
+ ptr++;
+
+ *len = ptr - start;
+ return start;
+}
+
+bool
+compare_subnode( ltree_level *t, char *qn, int len, int (*cmpptr)(const char *,const char *,size_t), bool anyend ) {
+ char *endt = t->name + t->len;
+ char *endq = qn + len;
+ char *tn;
+ int lent,lenq;
+ bool isok;
+
+ while( (qn=getlexem(qn,endq,&lenq)) != NULL ) {
+ tn=t->name;
+ isok = false;
+ while( (tn=getlexem(tn,endt,&lent)) != NULL ) {
+ if (
+ (
+ lent == lenq ||
+ ( lent > lenq && anyend )
+ ) &&
+ (*cmpptr)(qn,tn,lenq) == 0 ) {
+
+ isok = true;
+ break;
+ }
+ tn += lent;
+ }
+
+ if ( !isok )
+ return false;
+ qn += lenq;
+ }
+
+ return true;
+}
+
+static bool
+checkLevel( lquery_level *curq, ltree_level *curt ) {
+ int (*cmpptr)(const char *,const char *,size_t);
+ lquery_variant *curvar = LQL_FIRST(curq);
+ int i;
+
+ for(i=0;i<curq->numvar;i++) {
+ cmpptr = ( curvar->flag & LVAR_INCASE ) ? strncasecmp : strncmp;
+
+ if ( curvar->flag & LVAR_SUBLEXEM ) {
+ if ( compare_subnode(curt, curvar->name, curvar->len, cmpptr, (curvar->flag & LVAR_ANYEND) ) )
+ return true;
+ } else if (
+ (
+ curvar->len == curt->len ||
+ ( curt->len > curvar->len && (curvar->flag & LVAR_ANYEND) )
+ ) &&
+ (*cmpptr)( curvar->name, curt->name, curvar->len) == 0 ) {
+
+ return true;
+ }
+ curvar = LVAR_NEXT(curvar);
+ }
+ return false;
+}
+
+/*
+void
+printFieldNot(FieldNot *fn ) {
+ while(fn->q) {
+ elog(NOTICE,"posQ:%d lenQ:%d posT:%d lenT:%d", fn->posq,fn->nq,fn->post,fn->nt);
+ fn++;
+ }
+}
+*/
+
+static bool
+checkCond( lquery_level *curq, int query_numlevel, ltree_level *curt, int tree_numlevel, FieldNot *ptr ) {
+ uint32 low_pos=0,high_pos=0,cur_tpos=0;
+ int tlen = tree_numlevel, qlen = query_numlevel;
+ int isok;
+ lquery_level *prevq=NULL;
+ ltree_level *prevt=NULL;
+
+ while( tlen >0 && qlen>0 ) {
+ if ( curq->numvar ) {
+ prevt = curt;
+ while ( cur_tpos < low_pos ) {
+ curt = LEVEL_NEXT(curt);
+ tlen--;
+ cur_tpos++;
+ if ( tlen==0 )
+ return false;
+ if ( ptr && ptr->q )
+ ptr->nt++;
+ }
+
+ if ( ptr && curq->flag & LQL_NOT ) {
+ if ( !(prevq && prevq->numvar == 0) )
+ prevq = curq;
+ if ( ptr->q == NULL ) {
+ ptr->t = prevt;
+ ptr->q = prevq;
+ ptr->nt=1;
+ ptr->nq=1 + ( (prevq==curq) ? 0 : 1 );
+ ptr->posq = query_numlevel - qlen - ( (prevq==curq) ? 0 : 1 );
+ ptr->post = cur_tpos;
+ } else {
+ ptr->nt++;
+ ptr->nq++;
+ }
+
+ if ( qlen == 1 && ptr->q->numvar==0 )
+ ptr->nt = tree_numlevel - ptr->post;
+ curt = LEVEL_NEXT(curt);
+ tlen--;
+ cur_tpos++;
+ if ( high_pos < cur_tpos )
+ high_pos++;
+ } else {
+ isok = false;
+ while( cur_tpos <= high_pos && tlen > 0 && !isok) {
+ isok = checkLevel(curq, curt);
+ curt = LEVEL_NEXT(curt);
+ tlen--;
+ cur_tpos++;
+ if ( !isok && ptr )
+ ptr->nt++;
+ }
+ if ( !isok )
+ return false;
+
+ if (ptr && ptr->q) {
+ if ( checkCond(ptr->q,ptr->nq,ptr->t,ptr->nt,NULL) )
+ return false;
+ ptr->q = NULL;
+ }
+ low_pos=cur_tpos; high_pos=cur_tpos;
+ }
+ } else {
+ low_pos = cur_tpos + curq->low;
+ high_pos = cur_tpos + curq->high;
+ if ( ptr && ptr->q ) {
+ ptr->nq++;
+ if ( qlen==1 )
+ ptr->nt = tree_numlevel - ptr->post;
+ }
+ }
+
+ prevq = curq;
+ curq = LQL_NEXT(curq);
+ qlen--;
+ }
+
+ if ( low_pos > tree_numlevel || tree_numlevel > high_pos )
+ return false;
+
+ while( qlen>0 ) {
+ if ( curq->numvar ) {
+ if ( ! (curq->flag & LQL_NOT) )
+ return false;
+ } else {
+ low_pos = cur_tpos + curq->low;
+ high_pos = cur_tpos + curq->high;
+ }
+
+ curq = LQL_NEXT(curq);
+ qlen--;
+ }
+
+ if ( low_pos > tree_numlevel || tree_numlevel > high_pos )
+ return false;
+
+ if ( ptr && ptr->q && checkCond(ptr->q,ptr->nq,ptr->t,ptr->nt,NULL) )
+ return false;
+
+ return true;
+}
+
+Datum
+ltq_regex(PG_FUNCTION_ARGS) {
+ ltree *tree = PG_GETARG_LTREE(0);
+ lquery *query = PG_GETARG_LQUERY(1);
+ bool res= false;
+
+ if ( query->flag & LQUERY_HASNOT ) {
+ FieldNot fn;
+
+ fn.q=NULL;
+
+ res = checkCond( LQUERY_FIRST(query), query->numlevel,
+ LTREE_FIRST(tree), tree->numlevel, &fn );
+ } else {
+ res = checkCond( LQUERY_FIRST(query), query->numlevel,
+ LTREE_FIRST(tree), tree->numlevel, NULL );
+ }
+
+ PG_FREE_IF_COPY(tree,0);
+ PG_FREE_IF_COPY(query,1);
+ PG_RETURN_BOOL(res);
+}
+
+Datum
+ltq_rregex(PG_FUNCTION_ARGS) {
+ PG_RETURN_DATUM( DirectFunctionCall2( ltq_regex,
+ PG_GETARG_DATUM(1),
+ PG_GETARG_DATUM(0)
+ ) );
+}
diff --git a/contrib/ltree/ltree.h b/contrib/ltree/ltree.h
new file mode 100644
index 00000000000..750802d0936
--- /dev/null
+++ b/contrib/ltree/ltree.h
@@ -0,0 +1,251 @@
+#ifndef __LTREE_H__
+#define __LTREE_H__
+
+#include "postgres.h"
+#include "utils/elog.h"
+#include "utils/palloc.h"
+#include "utils/builtins.h"
+
+typedef struct {
+ uint8 len;
+ char name[1];
+} ltree_level;
+
+#define LEVEL_HDRSIZE (sizeof(uint8))
+#define LEVEL_NEXT(x) ( (ltree_level*)( ((char*)(x)) + ((ltree_level*)(x))->len + LEVEL_HDRSIZE ) )
+
+typedef struct {
+ int32 len;
+ uint16 numlevel;
+ char data[1];
+} ltree;
+
+#define LTREE_HDRSIZE ( sizeof(int32) + sizeof(uint16) )
+#define LTREE_FIRST(x) ( (ltree_level*)( ((ltree*)(x))->data ) )
+
+
+/* lquery */
+
+typedef struct {
+ int4 val;
+ uint8 len;
+ uint8 flag;
+ char name[1];
+} lquery_variant;
+
+#define LVAR_HDRSIZE (sizeof(uint8)*2 + sizeof(int4))
+#define LVAR_NEXT(x) ( (lquery_variant*)( ((char*)(x)) + ((lquery_variant*)(x))->len + LVAR_HDRSIZE ) )
+
+#define LVAR_ANYEND 0x01
+#define LVAR_INCASE 0x02
+#define LVAR_SUBLEXEM 0x04
+
+typedef struct {
+ uint16 totallen;
+ uint16 flag;
+ uint16 numvar;
+ uint16 low;
+ uint16 high;
+ char variants[1];
+} lquery_level;
+
+#define LQL_HDRSIZE ( sizeof(uint16)*5 )
+#define LQL_NEXT(x) ( (lquery_level*)( ((char*)(x)) + ((lquery_level*)(x))->totallen ) )
+#define LQL_FIRST(x) ( (lquery_variant*)( ((lquery_level*)(x))->variants ) )
+
+#define LQL_NOT 0x10
+#ifdef LOWER_NODE
+#define FLG_CANLOOKSIGN(x) ( ( (x) & ( LQL_NOT | LVAR_ANYEND | LVAR_SUBLEXEM ) ) == 0 )
+#else
+#define FLG_CANLOOKSIGN(x) ( ( (x) & ( LQL_NOT | LVAR_ANYEND | LVAR_SUBLEXEM | LVAR_INCASE ) ) == 0 )
+#endif
+#define LQL_CANLOOKSIGN(x) FLG_CANLOOKSIGN( ((lquery_level*)(x))->flag )
+
+typedef struct {
+ int32 len;
+ uint16 numlevel;
+ uint16 firstgood;
+ uint16 flag;
+ char data[1];
+} lquery;
+
+#define LQUERY_HDRSIZE ( sizeof(int32) + 3*sizeof(uint16) )
+#define LQUERY_FIRST(x) ( (lquery_level*)( ((lquery*)(x))->data ) )
+
+#define LQUERY_HASNOT 0x01
+
+#ifndef max
+#define max(a,b) ((a) > (b) ? (a) : (b))
+#endif
+#ifndef min
+#define min(a,b) ((a) <= (b) ? (a) : (b))
+#endif
+#ifndef abs
+#define abs(a) ((a) < (0) ? -(a) : (a))
+#endif
+#define ISALNUM(x) ( isalnum(x) || (x) == '_' )
+
+/* full text query */
+
+/*
+ * item in polish notation with back link
+ * to left operand
+ */
+typedef struct ITEM
+{
+ int2 type;
+ int2 left;
+ int4 val;
+ uint8 flag;
+ /* user-friendly value */
+ uint8 length;
+ uint16 distance;
+} ITEM;
+
+/*
+ *Storage:
+ * (len)(size)(array of ITEM)(array of operand in user-friendly form)
+ */
+typedef struct
+{
+ int4 len;
+ int4 size;
+ char data[1];
+} ltxtquery;
+
+#define HDRSIZEQT ( 2*sizeof(int4) )
+#define COMPUTESIZE(size,lenofoperand) ( HDRSIZEQT + size * sizeof(ITEM) + lenofoperand )
+#define GETQUERY(x) (ITEM*)( (char*)(x)+HDRSIZEQT )
+#define GETOPERAND(x) ( (char*)GETQUERY(x) + ((ltxtquery*)x)->size * sizeof(ITEM) )
+
+#define ISOPERATOR(x) ( (x)=='!' || (x)=='&' || (x)=='|' || (x)=='(' || (x)==')' )
+
+#define END 0
+#define ERR 1
+#define VAL 2
+#define OPR 3
+#define OPEN 4
+#define CLOSE 5
+#define VALTRUE 6 /* for stop words */
+#define VALFALSE 7
+
+
+/* use in array iterator */
+Datum ltree_isparent(PG_FUNCTION_ARGS);
+Datum ltree_risparent(PG_FUNCTION_ARGS);
+Datum ltq_regex(PG_FUNCTION_ARGS);
+Datum ltq_rregex(PG_FUNCTION_ARGS);
+Datum ltxtq_exec(PG_FUNCTION_ARGS);
+Datum ltxtq_rexec(PG_FUNCTION_ARGS);
+Datum _ltq_regex(PG_FUNCTION_ARGS);
+Datum _ltq_rregex(PG_FUNCTION_ARGS);
+Datum _ltxtq_exec(PG_FUNCTION_ARGS);
+Datum _ltxtq_rexec(PG_FUNCTION_ARGS);
+Datum _ltree_isparent(PG_FUNCTION_ARGS);
+Datum _ltree_risparent(PG_FUNCTION_ARGS);
+
+/* Concatenation functions */
+Datum ltree_addltree(PG_FUNCTION_ARGS);
+Datum ltree_addtext(PG_FUNCTION_ARGS);
+Datum ltree_textadd(PG_FUNCTION_ARGS);
+
+/* Util function */
+Datum ltree_in(PG_FUNCTION_ARGS);
+
+bool execute(ITEM * curitem, void *checkval,
+ bool calcnot, bool (*chkcond) (void *checkval, ITEM * val));
+
+int ltree_compare(const ltree *a, const ltree *b);
+bool inner_isparent(const ltree *c, const ltree *p);
+bool compare_subnode( ltree_level *t, char *q, int len,
+ int (*cmpptr)(const char *,const char *,size_t), bool anyend );
+
+#define PG_GETARG_LTREE(x) ((ltree*)DatumGetPointer(PG_DETOAST_DATUM(PG_GETARG_DATUM(x))))
+#define PG_GETARG_LQUERY(x) ((lquery*)DatumGetPointer(PG_DETOAST_DATUM(PG_GETARG_DATUM(x))))
+#define PG_GETARG_LTXTQUERY(x) ((ltxtquery*)DatumGetPointer(PG_DETOAST_DATUM(PG_GETARG_DATUM(x))))
+
+/* GiST support for ltree */
+
+#define BITBYTE 8
+#define SIGLENINT 8
+#define SIGLEN ( sizeof(int4)*SIGLENINT )
+#define SIGLENBIT (SIGLEN*BITBYTE)
+typedef unsigned char BITVEC[SIGLEN];
+typedef unsigned char *BITVECP;
+
+#define LOOPBYTE(a) \
+ for(i=0;i<SIGLEN;i++) {\
+ a;\
+ }
+#define LOOPBIT(a) \
+ for(i=0;i<SIGLENBIT;i++) {\
+ a;\
+ }
+
+#define GETBYTE(x,i) ( *( (BITVECP)(x) + (int)( (i) / BITBYTE ) ) )
+#define GETBITBYTE(x,i) ( ((unsigned char)(x)) >> i & 0x01 )
+#define CLRBIT(x,i) GETBYTE(x,i) &= ~( 0x01 << ( (i) % BITBYTE ) )
+#define SETBIT(x,i) GETBYTE(x,i) |= ( 0x01 << ( (i) % BITBYTE ) )
+#define GETBIT(x,i) ( (GETBYTE(x,i) >> ( (i) % BITBYTE )) & 0x01 )
+
+#define HASHVAL(val) (((unsigned int)(val)) % SIGLENBIT)
+#define HASH(sign, val) SETBIT((sign), HASHVAL(val))
+
+/*
+ * type of index key for ltree. Tree are combined B-Tree and R-Tree
+ * Storage:
+ * Leaf pages
+ * (len)(flag)(ltree)
+ * Non-Leaf
+ * (len)(flag)(sign)(left_ltree)(right_ltree)
+ * ALLTRUE: (len)(flag)(left_ltree)(right_ltree)
+ *
+ */
+
+typedef struct {
+ int4 len;
+ uint32 flag;
+ char data[1];
+} ltree_gist;
+
+#define LTG_ONENODE 0x01
+#define LTG_ALLTRUE 0x02
+#define LTG_NORIGHT 0x04
+
+#define LTG_HDRSIZE ( sizeof(int4) + sizeof(uint32) )
+#define LTG_SIGN(x) ( (BITVECP)( ((ltree_gist*)(x))->data ) )
+#define LTG_NODE(x) ( (ltree*)( ((ltree_gist*)(x))->data ) )
+#define LTG_ISONENODE(x) ( ((ltree_gist*)(x))->flag & LTG_ONENODE )
+#define LTG_ISALLTRUE(x) ( ((ltree_gist*)(x))->flag & LTG_ALLTRUE )
+#define LTG_ISNORIGHT(x) ( ((ltree_gist*)(x))->flag & LTG_NORIGHT )
+#define LTG_LNODE(x) ( (ltree*)( ( (char*)( ((ltree_gist*)(x))->data ) ) + ( LTG_ISALLTRUE(x) ? 0 : SIGLEN ) ) )
+#define LTG_RENODE(x) ( (ltree*)( ((char*)LTG_LNODE(x)) + LTG_LNODE(x)->len ) )
+#define LTG_RNODE(x) ( LTG_ISNORIGHT(x) ? LTG_LNODE(x) : LTG_RENODE(x) )
+
+#define LTG_GETLNODE(x) ( LTG_ISONENODE(x) ? LTG_NODE(x) : LTG_LNODE(x) )
+#define LTG_GETRNODE(x) ( LTG_ISONENODE(x) ? LTG_NODE(x) : LTG_RNODE(x) )
+
+
+/* GiST support for ltree[] */
+
+#define ASIGLENINT (2*SIGLENINT)
+#define ASIGLEN (sizeof(int4)*ASIGLENINT)
+#define ASIGLENBIT (ASIGLEN*BITBYTE)
+typedef unsigned char ABITVEC[ASIGLEN];
+
+#define ALOOPBYTE(a) \
+ for(i=0;i<ASIGLEN;i++) {\
+ a;\
+ }
+#define ALOOPBIT(a) \
+ for(i=0;i<ASIGLENBIT;i++) {\
+ a;\
+ }
+
+#define AHASHVAL(val) (((unsigned int)(val)) % ASIGLENBIT)
+#define AHASH(sign, val) SETBIT((sign), AHASHVAL(val))
+
+/* type of key is the same to ltree_gist */
+
+#endif
+
diff --git a/contrib/ltree/ltree.sql.in b/contrib/ltree/ltree.sql.in
new file mode 100644
index 00000000000..b40a01a02cc
--- /dev/null
+++ b/contrib/ltree/ltree.sql.in
@@ -0,0 +1,849 @@
+BEGIN;
+
+CREATE FUNCTION ltree_in(opaque)
+RETURNS opaque
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict);
+
+CREATE FUNCTION ltree_out(opaque)
+RETURNS opaque
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict);
+
+CREATE TYPE ltree (
+internallength = -1,
+input = ltree_in,
+output = ltree_out,
+storage = extended
+);
+
+
+--Compare function for ltree
+CREATE FUNCTION ltree_cmp(ltree,ltree)
+RETURNS int4
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict,iscachable);
+
+CREATE FUNCTION ltree_lt(ltree,ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict,iscachable);
+
+CREATE FUNCTION ltree_le(ltree,ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict,iscachable);
+
+CREATE FUNCTION ltree_eq(ltree,ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict,iscachable);
+
+CREATE FUNCTION ltree_ge(ltree,ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict,iscachable);
+
+CREATE FUNCTION ltree_gt(ltree,ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict,iscachable);
+
+CREATE FUNCTION ltree_ne(ltree,ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict,iscachable);
+
+
+CREATE OPERATOR < (
+ LEFTARG = ltree, RIGHTARG = ltree, PROCEDURE = ltree_lt,
+ COMMUTATOR = '>', NEGATOR = '>=',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+CREATE OPERATOR <= (
+ LEFTARG = ltree, RIGHTARG = ltree, PROCEDURE = ltree_le,
+ COMMUTATOR = '>=', NEGATOR = '>',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+CREATE OPERATOR >= (
+ LEFTARG = ltree, RIGHTARG = ltree, PROCEDURE = ltree_ge,
+ COMMUTATOR = '<=', NEGATOR = '<',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+CREATE OPERATOR > (
+ LEFTARG = ltree, RIGHTARG = ltree, PROCEDURE = ltree_gt,
+ COMMUTATOR = '<', NEGATOR = '<=',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+CREATE OPERATOR = (
+ LEFTARG = ltree, RIGHTARG = ltree, PROCEDURE = ltree_eq,
+ COMMUTATOR = '=', NEGATOR = '<>',
+ RESTRICT = eqsel, JOIN = eqjoinsel,
+ SORT1 = '<', SORT2 = '<'
+);
+
+CREATE OPERATOR <> (
+ LEFTARG = ltree, RIGHTARG = ltree, PROCEDURE = ltree_ne,
+ COMMUTATOR = '<>', NEGATOR = '=',
+ RESTRICT = neqsel, JOIN = neqjoinsel
+);
+
+--util functions
+
+CREATE FUNCTION subltree(ltree,int4,int4)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict,iscachable);
+
+CREATE FUNCTION subpath(ltree,int4,int4)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict,iscachable);
+
+CREATE FUNCTION subpath(ltree,int4)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict,iscachable);
+
+CREATE FUNCTION nlevel(ltree)
+RETURNS int4
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict,iscachable);
+
+CREATE FUNCTION ltree_isparent(ltree,ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict,iscachable);
+
+CREATE FUNCTION ltree_risparent(ltree,ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict,iscachable);
+
+CREATE FUNCTION ltree_addltree(ltree,ltree)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict,iscachable);
+
+CREATE FUNCTION ltree_addtext(ltree,text)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict,iscachable);
+
+CREATE FUNCTION ltree_textadd(text,ltree)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict,iscachable);
+
+CREATE OPERATOR @> (
+ LEFTARG = ltree, RIGHTARG = ltree, PROCEDURE = ltree_isparent,
+ COMMUTATOR = '<@',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+CREATE OPERATOR ^@> (
+ LEFTARG = ltree, RIGHTARG = ltree, PROCEDURE = ltree_isparent,
+ COMMUTATOR = '^<@',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+CREATE OPERATOR <@ (
+ LEFTARG = ltree, RIGHTARG = ltree, PROCEDURE = ltree_risparent,
+ COMMUTATOR = '@>',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+CREATE OPERATOR ^<@ (
+ LEFTARG = ltree, RIGHTARG = ltree, PROCEDURE = ltree_risparent,
+ COMMUTATOR = '^@>',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+CREATE OPERATOR || (
+ LEFTARG = ltree, RIGHTARG = ltree, PROCEDURE = ltree_addltree
+);
+
+CREATE OPERATOR || (
+ LEFTARG = ltree, RIGHTARG = text, PROCEDURE = ltree_addtext
+);
+
+CREATE OPERATOR || (
+ LEFTARG = text, RIGHTARG = ltree, PROCEDURE = ltree_textadd
+);
+
+
+-- B-tree support
+INSERT INTO pg_opclass (opcamid, opcname, opcnamespace, opcowner, opcintype, opcdefault, opckeytype)
+ VALUES (
+ (SELECT oid FROM pg_am WHERE amname = 'btree'),
+ 'ltree_ops',
+ (SELECT oid FROM pg_namespace WHERE nspname = 'pg_catalog'),
+ 1, -- UID of superuser is hardwired to 1 as of PG 7.3
+ (SELECT oid FROM pg_type WHERE typname = 'ltree'),
+ true,
+ 0);
+
+SELECT o.oid AS opoid, o.oprname
+ INTO TEMP TABLE ltree_ops_tmp
+ FROM pg_operator o, pg_type t
+ WHERE o.oprleft = t.oid and o.oprright = t.oid
+ and t.typname = 'ltree';
+
+INSERT INTO pg_amop (amopclaid, amopstrategy, amopreqcheck, amopopr)
+ SELECT opcl.oid, 1, false, c.opoid
+ FROM pg_opclass opcl, ltree_ops_tmp c
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'btree') AND
+ opcname = 'ltree_ops' AND
+ c.oprname = '<';
+
+INSERT INTO pg_amop (amopclaid, amopstrategy, amopreqcheck, amopopr)
+ SELECT opcl.oid, 2, false, c.opoid
+ FROM pg_opclass opcl, ltree_ops_tmp c
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'btree') AND
+ opcname = 'ltree_ops' AND
+ c.oprname = '<=';
+INSERT INTO pg_amop (amopclaid, amopstrategy, amopreqcheck, amopopr)
+ SELECT opcl.oid, 3, false, c.opoid
+ FROM pg_opclass opcl, ltree_ops_tmp c
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'btree') AND
+ opcname = 'ltree_ops' AND
+ c.oprname = '=';
+
+INSERT INTO pg_amop (amopclaid, amopstrategy, amopreqcheck, amopopr)
+ SELECT opcl.oid, 4, false, c.opoid
+ FROM pg_opclass opcl, ltree_ops_tmp c
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'btree') AND
+ opcname = 'ltree_ops' AND
+ c.oprname = '>=';
+
+INSERT INTO pg_amop (amopclaid, amopstrategy, amopreqcheck, amopopr)
+ SELECT opcl.oid, 5, false, c.opoid
+ FROM pg_opclass opcl, ltree_ops_tmp c
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'btree') AND
+ opcname = 'ltree_ops' AND
+ c.oprname = '>';
+
+INSERT INTO pg_amproc (amopclaid, amprocnum, amproc)
+ SELECT opcl.oid, 1, p.oid
+ FROM pg_opclass opcl, pg_proc p
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'btree') AND
+ opcname = 'ltree_ops' AND
+ p.proname = 'ltree_cmp';
+
+drop table ltree_ops_tmp;
+
+--lquery type
+CREATE FUNCTION lquery_in(opaque)
+RETURNS opaque
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict);
+
+CREATE FUNCTION lquery_out(opaque)
+RETURNS opaque
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict);
+
+CREATE TYPE lquery (
+internallength = -1,
+input = lquery_in,
+output = lquery_out,
+storage = extended
+);
+
+CREATE FUNCTION ltq_regex(ltree,lquery)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict,iscachable);
+
+CREATE FUNCTION ltq_rregex(lquery,ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict,iscachable);
+
+CREATE OPERATOR ~ (
+ LEFTARG = ltree, RIGHTARG = lquery, PROCEDURE = ltq_regex,
+ COMMUTATOR = '~',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+CREATE OPERATOR ~ (
+ LEFTARG = lquery, RIGHTARG = ltree, PROCEDURE = ltq_rregex,
+ COMMUTATOR = '~',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+--not-indexed
+CREATE OPERATOR ^~ (
+ LEFTARG = ltree, RIGHTARG = lquery, PROCEDURE = ltq_regex,
+ COMMUTATOR = '^~',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+CREATE OPERATOR ^~ (
+ LEFTARG = lquery, RIGHTARG = ltree, PROCEDURE = ltq_rregex,
+ COMMUTATOR = '^~',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+CREATE FUNCTION ltxtq_in(opaque)
+RETURNS opaque
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict);
+
+CREATE FUNCTION ltxtq_out(opaque)
+RETURNS opaque
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict);
+
+CREATE TYPE ltxtquery (
+internallength = -1,
+input = ltxtq_in,
+output = ltxtq_out,
+storage = extended
+);
+
+-- operations with ltxtquery
+
+CREATE FUNCTION ltxtq_exec(ltree, ltxtquery)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict, iscachable);
+
+CREATE FUNCTION ltxtq_rexec(ltxtquery, ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict, iscachable);
+
+CREATE OPERATOR @ (
+ LEFTARG = ltree, RIGHTARG = ltxtquery, PROCEDURE = ltxtq_exec,
+ COMMUTATOR = '@',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+CREATE OPERATOR @ (
+ LEFTARG = ltxtquery, RIGHTARG = ltree, PROCEDURE = ltxtq_rexec,
+ COMMUTATOR = '@',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+--not-indexed
+CREATE OPERATOR ^@ (
+ LEFTARG = ltree, RIGHTARG = ltxtquery, PROCEDURE = ltxtq_exec,
+ COMMUTATOR = '^@',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+CREATE OPERATOR ^@ (
+ LEFTARG = ltxtquery, RIGHTARG = ltree, PROCEDURE = ltxtq_rexec,
+ COMMUTATOR = '^@',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+--GiST support for ltree
+CREATE FUNCTION ltree_gist_in(opaque)
+RETURNS opaque
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict);
+
+CREATE FUNCTION ltree_gist_out(opaque)
+RETURNS opaque
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict);
+
+CREATE TYPE ltree_gist (
+ internallength = -1,
+ input = ltree_gist_in,
+ output = ltree_gist_out,
+ storage = plain
+);
+
+
+create function ltree_consistent(opaque,opaque,int2) returns bool as 'MODULE_PATHNAME' language 'C';
+create function ltree_compress(opaque) returns opaque as 'MODULE_PATHNAME' language 'C';
+create function ltree_decompress(opaque) returns opaque as 'MODULE_PATHNAME' language 'C';
+create function ltree_penalty(opaque,opaque,opaque) returns opaque as 'MODULE_PATHNAME' language 'C' with(isstrict);
+create function ltree_picksplit(opaque, opaque) returns opaque as 'MODULE_PATHNAME' language 'C';
+create function ltree_union(bytea, opaque) returns int4 as 'MODULE_PATHNAME' language 'C';
+create function ltree_same(opaque, opaque, opaque) returns opaque as 'MODULE_PATHNAME' language 'C';
+
+INSERT INTO pg_opclass (opcamid, opcname, opcnamespace, opcowner, opcintype, opckeytype, opcdefault)
+ SELECT pg_am.oid, 'gist_ltree_ops',
+ (SELECT oid FROM pg_namespace WHERE nspname = 'pg_catalog'),
+ 1, -- UID of superuser is hardwired to 1 as of PG 7.3
+ pg_type.oid, pg_key.oid, true
+ FROM pg_type, pg_am, pg_type pg_key
+ WHERE pg_type.typname = 'ltree' and
+ pg_am.amname='gist' and
+ pg_key.typname = 'ltree_gist';
+
+SELECT o.oid AS opoid, o.oprname
+INTO TABLE ltree_ops_tmp
+FROM pg_operator o, pg_type t
+WHERE o.oprleft = t.oid and o.oprright = t.oid
+ and t.typname = 'ltree';
+
+INSERT INTO pg_amop (amopclaid, amopopr, amopstrategy, amopreqcheck)
+ SELECT opcl.oid, c.opoid, 1, 'f'
+ FROM pg_opclass opcl, ltree_ops_tmp c
+ WHERE opcname = 'gist_ltree_ops'
+ and c.oprname = '<';
+
+INSERT INTO pg_amop (amopclaid, amopopr, amopstrategy, amopreqcheck)
+ SELECT opcl.oid, c.opoid, 2, 'f'
+ FROM pg_opclass opcl, ltree_ops_tmp c
+ WHERE opcname = 'gist_ltree_ops'
+ and c.oprname = '<=';
+
+INSERT INTO pg_amop (amopclaid, amopopr, amopstrategy, amopreqcheck)
+ SELECT opcl.oid, c.opoid, 3, 'f'
+ FROM pg_opclass opcl, ltree_ops_tmp c
+ WHERE opcname = 'gist_ltree_ops'
+ and c.oprname = '=';
+
+INSERT INTO pg_amop (amopclaid, amopopr, amopstrategy, amopreqcheck)
+ SELECT opcl.oid, c.opoid, 4, 'f'
+ FROM pg_opclass opcl, ltree_ops_tmp c
+ WHERE opcname = 'gist_ltree_ops'
+ and c.oprname = '>=';
+
+INSERT INTO pg_amop (amopclaid, amopopr, amopstrategy, amopreqcheck)
+ SELECT opcl.oid, c.opoid, 5, 'f'
+ FROM pg_opclass opcl, ltree_ops_tmp c
+ WHERE opcname = 'gist_ltree_ops'
+ and c.oprname = '>';
+
+INSERT INTO pg_amop (amopclaid, amopstrategy, amopreqcheck, amopopr)
+ SELECT opcl.oid, 10, false, c.opoid
+ FROM pg_opclass opcl, ltree_ops_tmp c
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
+ and opcname = 'gist_ltree_ops'
+ and c.oprname = '@>';
+
+INSERT INTO pg_amop (amopclaid, amopstrategy, amopreqcheck, amopopr)
+ SELECT opcl.oid, 11, false, c.opoid
+ FROM pg_opclass opcl, ltree_ops_tmp c
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
+ and opcname = 'gist_ltree_ops'
+ and c.oprname = '<@';
+
+DROP TABLE ltree_ops_tmp;
+
+INSERT INTO pg_amop (amopclaid, amopstrategy, amopreqcheck, amopopr)
+ SELECT opcl.oid, 12, false, o.oid
+ FROM pg_opclass opcl, pg_operator o, pg_type t, pg_type tq
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
+ and opcname = 'gist_ltree_ops'
+ and t.typname = 'ltree' and tq.typname = 'lquery'
+ and o.oprleft = t.oid and o.oprright = tq.oid
+ and o.oprname = '~';
+
+INSERT INTO pg_amop (amopclaid, amopstrategy, amopreqcheck, amopopr)
+ SELECT opcl.oid, 13, false, o.oid
+ FROM pg_opclass opcl, pg_operator o, pg_type t, pg_type tq
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
+ and opcname = 'gist_ltree_ops'
+ and t.typname = 'lquery' and tq.typname = 'ltree'
+ and o.oprleft = t.oid and o.oprright = tq.oid
+ and o.oprname = '~';
+
+INSERT INTO pg_amop (amopclaid, amopstrategy, amopreqcheck, amopopr)
+ SELECT opcl.oid, 14, false, o.oid
+ FROM pg_opclass opcl, pg_operator o, pg_type t, pg_type tq
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
+ and opcname = 'gist_ltree_ops'
+ and t.typname = 'ltree' and tq.typname = 'ltxtquery'
+ and o.oprleft = t.oid and o.oprright = tq.oid
+ and o.oprname = '@';
+
+INSERT INTO pg_amop (amopclaid, amopstrategy, amopreqcheck, amopopr)
+ SELECT opcl.oid, 15, false, o.oid
+ FROM pg_opclass opcl, pg_operator o, pg_type t, pg_type tq
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
+ and opcname = 'gist_ltree_ops'
+ and t.typname = 'ltxtquery' and tq.typname = 'ltree'
+ and o.oprleft = t.oid and o.oprright = tq.oid
+ and o.oprname = '@';
+
+INSERT INTO pg_amproc (amopclaid, amprocnum, amproc)
+ SELECT opcl.oid, 1, pro.oid
+ FROM pg_opclass opcl, pg_proc pro
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
+ and opcname = 'gist_ltree_ops'
+ and proname = 'ltree_consistent';
+
+INSERT INTO pg_amproc (amopclaid, amprocnum, amproc)
+ SELECT opcl.oid, 2, pro.oid
+ FROM pg_opclass opcl, pg_proc pro
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
+ and opcname = 'gist_ltree_ops'
+ and proname = 'ltree_union';
+
+INSERT INTO pg_amproc (amopclaid, amprocnum, amproc)
+ SELECT opcl.oid, 3, pro.oid
+ FROM pg_opclass opcl, pg_proc pro
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
+ and opcname = 'gist_ltree_ops'
+ and proname = 'ltree_compress';
+INSERT INTO pg_amproc (amopclaid, amprocnum, amproc)
+ SELECT opcl.oid, 4, pro.oid
+ FROM pg_opclass opcl, pg_proc pro
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
+ and opcname = 'gist_ltree_ops'
+ and proname = 'ltree_decompress';
+
+INSERT INTO pg_amproc (amopclaid, amprocnum, amproc)
+ SELECT opcl.oid, 5, pro.oid
+ FROM pg_opclass opcl, pg_proc pro
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
+ and opcname = 'gist_ltree_ops'
+ and proname = 'ltree_penalty';
+
+INSERT INTO pg_amproc (amopclaid, amprocnum, amproc)
+ SELECT opcl.oid, 6, pro.oid
+ FROM pg_opclass opcl, pg_proc pro
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
+ and opcname = 'gist_ltree_ops'
+ and proname = 'ltree_picksplit';
+
+INSERT INTO pg_amproc (amopclaid, amprocnum, amproc)
+ SELECT opcl.oid, 7, pro.oid
+ FROM pg_opclass opcl, pg_proc pro
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
+ and opcname = 'gist_ltree_ops'
+ and proname = 'ltree_same';
+
+-- arrays of ltree
+
+CREATE FUNCTION _ltree_isparent(_ltree,ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict,iscachable);
+
+CREATE FUNCTION _ltree_r_isparent(ltree,_ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict,iscachable);
+
+CREATE FUNCTION _ltree_risparent(_ltree,ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict,iscachable);
+
+CREATE FUNCTION _ltree_r_risparent(ltree,_ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict,iscachable);
+
+CREATE FUNCTION _ltq_regex(_ltree,lquery)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict,iscachable);
+
+CREATE FUNCTION _ltq_rregex(lquery,_ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict,iscachable);
+
+CREATE FUNCTION _ltxtq_exec(_ltree, ltxtquery)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict, iscachable);
+
+CREATE FUNCTION _ltxtq_rexec(ltxtquery, _ltree)
+RETURNS bool
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict, iscachable);
+
+CREATE OPERATOR @> (
+ LEFTARG = _ltree, RIGHTARG = ltree, PROCEDURE = _ltree_isparent,
+ COMMUTATOR = '<@',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+CREATE OPERATOR <@ (
+ LEFTARG = ltree, RIGHTARG = _ltree, PROCEDURE = _ltree_r_isparent,
+ COMMUTATOR = '@>',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+CREATE OPERATOR <@ (
+ LEFTARG = _ltree, RIGHTARG = ltree, PROCEDURE = _ltree_risparent,
+ COMMUTATOR = '@>',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+CREATE OPERATOR @> (
+ LEFTARG = ltree, RIGHTARG = _ltree, PROCEDURE = _ltree_r_risparent,
+ COMMUTATOR = '<@',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+CREATE OPERATOR ~ (
+ LEFTARG = _ltree, RIGHTARG = lquery, PROCEDURE = _ltq_regex,
+ COMMUTATOR = '~',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+CREATE OPERATOR ~ (
+ LEFTARG = lquery, RIGHTARG = _ltree, PROCEDURE = _ltq_rregex,
+ COMMUTATOR = '~',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+CREATE OPERATOR @ (
+ LEFTARG = _ltree, RIGHTARG = ltxtquery, PROCEDURE = _ltxtq_exec,
+ COMMUTATOR = '@',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+CREATE OPERATOR @ (
+ LEFTARG = ltxtquery, RIGHTARG = _ltree, PROCEDURE = _ltxtq_rexec,
+ COMMUTATOR = '@',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+
+--not indexed
+CREATE OPERATOR ^@> (
+ LEFTARG = _ltree, RIGHTARG = ltree, PROCEDURE = _ltree_isparent,
+ COMMUTATOR = '^<@',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+CREATE OPERATOR ^<@ (
+ LEFTARG = ltree, RIGHTARG = _ltree, PROCEDURE = _ltree_r_isparent,
+ COMMUTATOR = '^@>',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+CREATE OPERATOR ^<@ (
+ LEFTARG = _ltree, RIGHTARG = ltree, PROCEDURE = _ltree_risparent,
+ COMMUTATOR = '^@>',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+CREATE OPERATOR ^@> (
+ LEFTARG = ltree, RIGHTARG = _ltree, PROCEDURE = _ltree_r_risparent,
+ COMMUTATOR = '^<@',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+CREATE OPERATOR ^~ (
+ LEFTARG = _ltree, RIGHTARG = lquery, PROCEDURE = _ltq_regex,
+ COMMUTATOR = '^~',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+CREATE OPERATOR ^~ (
+ LEFTARG = lquery, RIGHTARG = _ltree, PROCEDURE = _ltq_rregex,
+ COMMUTATOR = '^~',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+CREATE OPERATOR ^@ (
+ LEFTARG = _ltree, RIGHTARG = ltxtquery, PROCEDURE = _ltxtq_exec,
+ COMMUTATOR = '^@',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+CREATE OPERATOR ^@ (
+ LEFTARG = ltxtquery, RIGHTARG = _ltree, PROCEDURE = _ltxtq_rexec,
+ COMMUTATOR = '^@',
+ RESTRICT = contsel, JOIN = contjoinsel
+);
+
+--extractors
+CREATE FUNCTION _ltree_extract_isparent(_ltree,ltree)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict,iscachable);
+
+CREATE OPERATOR ?@> (
+ LEFTARG = _ltree, RIGHTARG = ltree, PROCEDURE = _ltree_extract_isparent
+);
+
+CREATE FUNCTION _ltree_extract_risparent(_ltree,ltree)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict,iscachable);
+
+CREATE OPERATOR ?<@ (
+ LEFTARG = _ltree, RIGHTARG = ltree, PROCEDURE = _ltree_extract_risparent
+);
+
+CREATE FUNCTION _ltq_extract_regex(_ltree,lquery)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict,iscachable);
+
+CREATE OPERATOR ?~ (
+ LEFTARG = _ltree, RIGHTARG = lquery, PROCEDURE = _ltq_extract_regex
+);
+
+CREATE FUNCTION _ltxtq_extract_exec(_ltree,ltxtquery)
+RETURNS ltree
+AS 'MODULE_PATHNAME'
+LANGUAGE 'c' with (isstrict,iscachable);
+
+CREATE OPERATOR ?@ (
+ LEFTARG = _ltree, RIGHTARG = ltxtquery, PROCEDURE = _ltxtq_extract_exec
+);
+
+--GiST support for ltree[]
+create function _ltree_consistent(opaque,opaque,int2) returns bool as 'MODULE_PATHNAME' language 'C';
+create function _ltree_compress(opaque) returns opaque as 'MODULE_PATHNAME' language 'C';
+create function _ltree_penalty(opaque,opaque,opaque) returns opaque as 'MODULE_PATHNAME' language 'C' with(isstrict);
+create function _ltree_picksplit(opaque, opaque) returns opaque as 'MODULE_PATHNAME' language 'C';
+create function _ltree_union(bytea, opaque) returns int4 as 'MODULE_PATHNAME' language 'C';
+create function _ltree_same(opaque, opaque, opaque) returns opaque as 'MODULE_PATHNAME' language 'C';
+
+INSERT INTO pg_opclass (opcamid, opcname, opcnamespace, opcowner, opcintype, opckeytype, opcdefault)
+ SELECT pg_am.oid, 'gist__ltree_ops',
+ (SELECT oid FROM pg_namespace WHERE nspname = 'pg_catalog'),
+ 1, -- UID of superuser is hardwired to 1 as of PG 7.3
+ pg_type.oid, pg_key.oid, true
+ FROM pg_type, pg_am, pg_type pg_key
+ WHERE pg_type.typname = '_ltree' and
+ pg_am.amname='gist' and
+ pg_key.typname = 'ltree_gist';
+
+INSERT INTO pg_amop (amopclaid, amopstrategy, amopreqcheck, amopopr)
+ SELECT opcl.oid, 12, true, o.oid
+ FROM pg_opclass opcl, pg_operator o, pg_type t, pg_type tq
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
+ and opcname = 'gist__ltree_ops'
+ and t.typname = '_ltree' and tq.typname = 'lquery'
+ and o.oprleft = t.oid and o.oprright = tq.oid
+ and o.oprname = '~';
+
+INSERT INTO pg_amop (amopclaid, amopstrategy, amopreqcheck, amopopr)
+ SELECT opcl.oid, 13, true, o.oid
+ FROM pg_opclass opcl, pg_operator o, pg_type t, pg_type tq
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
+ and opcname = 'gist__ltree_ops'
+ and t.typname = 'lquery' and tq.typname = '_ltree'
+ and o.oprleft = t.oid and o.oprright = tq.oid
+ and o.oprname = '~';
+
+INSERT INTO pg_amop (amopclaid, amopstrategy, amopreqcheck, amopopr)
+ SELECT opcl.oid, 14, true, o.oid
+ FROM pg_opclass opcl, pg_operator o, pg_type t, pg_type tq
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
+ and opcname = 'gist__ltree_ops'
+ and t.typname = '_ltree' and tq.typname = 'ltxtquery'
+ and o.oprleft = t.oid and o.oprright = tq.oid
+ and o.oprname = '@';
+
+INSERT INTO pg_amop (amopclaid, amopstrategy, amopreqcheck, amopopr)
+ SELECT opcl.oid, 15, true, o.oid
+ FROM pg_opclass opcl, pg_operator o, pg_type t, pg_type tq
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
+ and opcname = 'gist__ltree_ops'
+ and t.typname = 'ltxtquery' and tq.typname = '_ltree'
+ and o.oprleft = t.oid and o.oprright = tq.oid
+ and o.oprname = '@';
+
+INSERT INTO pg_amop (amopclaid, amopstrategy, amopreqcheck, amopopr)
+ SELECT opcl.oid, 10, true, o.oid
+ FROM pg_opclass opcl, pg_operator o, pg_type t, pg_type tq
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
+ and opcname = 'gist__ltree_ops'
+ and t.typname = '_ltree' and tq.typname = 'ltree'
+ and o.oprleft = t.oid and o.oprright = tq.oid
+ and o.oprname = '<@';
+
+INSERT INTO pg_amop (amopclaid, amopstrategy, amopreqcheck, amopopr)
+ SELECT opcl.oid, 11, true, o.oid
+ FROM pg_opclass opcl, pg_operator o, pg_type t, pg_type tq
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
+ and opcname = 'gist__ltree_ops'
+ and t.typname = 'ltree' and tq.typname = '_ltree'
+ and o.oprleft = t.oid and o.oprright = tq.oid
+ and o.oprname = '@>';
+
+INSERT INTO pg_amproc (amopclaid, amprocnum, amproc)
+ SELECT opcl.oid, 1, pro.oid
+ FROM pg_opclass opcl, pg_proc pro
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
+ and opcname = 'gist__ltree_ops'
+ and proname = '_ltree_consistent';
+
+INSERT INTO pg_amproc (amopclaid, amprocnum, amproc)
+ SELECT opcl.oid, 2, pro.oid
+ FROM pg_opclass opcl, pg_proc pro
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
+ and opcname = 'gist__ltree_ops'
+ and proname = '_ltree_union';
+
+INSERT INTO pg_amproc (amopclaid, amprocnum, amproc)
+ SELECT opcl.oid, 3, pro.oid
+ FROM pg_opclass opcl, pg_proc pro
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
+ and opcname = 'gist__ltree_ops'
+ and proname = '_ltree_compress';
+
+INSERT INTO pg_amproc (amopclaid, amprocnum, amproc)
+ SELECT opcl.oid, 4, pro.oid
+ FROM pg_opclass opcl, pg_proc pro
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
+ and opcname = 'gist__ltree_ops'
+ and proname = 'ltree_decompress';
+
+INSERT INTO pg_amproc (amopclaid, amprocnum, amproc)
+ SELECT opcl.oid, 5, pro.oid
+ FROM pg_opclass opcl, pg_proc pro
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
+ and opcname = 'gist__ltree_ops'
+ and proname = '_ltree_penalty';
+
+INSERT INTO pg_amproc (amopclaid, amprocnum, amproc)
+ SELECT opcl.oid, 6, pro.oid
+ FROM pg_opclass opcl, pg_proc pro
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
+ and opcname = 'gist__ltree_ops'
+ and proname = '_ltree_picksplit';
+
+INSERT INTO pg_amproc (amopclaid, amprocnum, amproc)
+ SELECT opcl.oid, 7, pro.oid
+ FROM pg_opclass opcl, pg_proc pro
+ WHERE
+ opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
+ and opcname = 'gist__ltree_ops'
+ and proname = '_ltree_same';
+
+END;
diff --git a/contrib/ltree/ltree_gist.c b/contrib/ltree/ltree_gist.c
new file mode 100644
index 00000000000..024fd6acbe4
--- /dev/null
+++ b/contrib/ltree/ltree_gist.c
@@ -0,0 +1,600 @@
+/*
+ * GiST support for ltree
+ * Teodor Sigaev <teodor@stack.net>
+ */
+
+#include "ltree.h"
+#include "access/gist.h"
+#include "access/rtree.h"
+#include "access/nbtree.h"
+
+#include "crc32.h"
+
+PG_FUNCTION_INFO_V1( ltree_gist_in );
+Datum ltree_gist_in(PG_FUNCTION_ARGS);
+PG_FUNCTION_INFO_V1( ltree_gist_out );
+Datum ltree_gist_out(PG_FUNCTION_ARGS);
+
+Datum
+ltree_gist_in(PG_FUNCTION_ARGS) {
+ elog(ERROR,"Unimplemented");
+ PG_RETURN_DATUM(0);
+}
+
+Datum
+ltree_gist_out(PG_FUNCTION_ARGS) {
+ elog(ERROR,"Unimplemented");
+ PG_RETURN_DATUM(0);
+}
+
+PG_FUNCTION_INFO_V1( ltree_compress );
+Datum ltree_compress(PG_FUNCTION_ARGS);
+PG_FUNCTION_INFO_V1( ltree_decompress );
+Datum ltree_decompress(PG_FUNCTION_ARGS);
+PG_FUNCTION_INFO_V1( ltree_same );
+Datum ltree_same(PG_FUNCTION_ARGS);
+PG_FUNCTION_INFO_V1( ltree_union );
+Datum ltree_union(PG_FUNCTION_ARGS);
+PG_FUNCTION_INFO_V1( ltree_penalty );
+Datum ltree_penalty(PG_FUNCTION_ARGS);
+PG_FUNCTION_INFO_V1( ltree_picksplit );
+Datum ltree_picksplit(PG_FUNCTION_ARGS);
+PG_FUNCTION_INFO_V1( ltree_consistent );
+Datum ltree_consistent(PG_FUNCTION_ARGS);
+
+#define ISEQ(a,b) ( (a)->numlevel == (b)->numlevel && ltree_compare(a,b)==0 )
+#define GETENTRY(vec,pos) ((ltree_gist *) DatumGetPointer(((GISTENTRY *) VARDATA(vec))[(pos)].key))
+
+Datum
+ltree_compress(PG_FUNCTION_ARGS) {
+ GISTENTRY *entry = (GISTENTRY *)PG_GETARG_POINTER(0);
+ GISTENTRY *retval = entry;
+
+ if ( entry->leafkey ) { /* ltree */
+ ltree_gist *key;
+ ltree *val = (ltree*)DatumGetPointer(PG_DETOAST_DATUM(entry->key));
+ int4 len = LTG_HDRSIZE + val->len;
+
+ key = (ltree_gist*)palloc( len );
+ key->len = len;
+ key->flag = LTG_ONENODE;
+ memcpy( (void*)LTG_NODE(key), (void*)val, val->len);
+
+ if ( PointerGetDatum(val) != entry->key )
+ pfree(val);
+
+ retval = (GISTENTRY*)palloc( sizeof(GISTENTRY) );
+ gistentryinit(*retval, PointerGetDatum(key),
+ entry->rel, entry->page,
+ entry->offset, key->len, FALSE);
+ }
+ PG_RETURN_POINTER(retval);
+}
+
+Datum
+ltree_decompress(PG_FUNCTION_ARGS) {
+ GISTENTRY *entry = (GISTENTRY *)PG_GETARG_POINTER(0);
+ ltree_gist *key = (ltree_gist*)DatumGetPointer( PG_DETOAST_DATUM(entry->key) );
+
+ if ( PointerGetDatum(key) != entry->key ) {
+ GISTENTRY *retval = (GISTENTRY*)palloc(sizeof(GISTENTRY));
+ gistentryinit(*retval, PointerGetDatum(key),
+ entry->rel, entry->page,
+ entry->offset, key->len, FALSE);
+ PG_RETURN_POINTER(retval);
+ }
+ PG_RETURN_POINTER(entry);
+}
+
+Datum
+ltree_same(PG_FUNCTION_ARGS) {
+ ltree_gist* a=(ltree_gist*)PG_GETARG_POINTER(0);
+ ltree_gist* b=(ltree_gist*)PG_GETARG_POINTER(1);
+ bool *result = (bool *)PG_GETARG_POINTER(2);
+
+ *result = false;
+ if ( LTG_ISONENODE(a) != LTG_ISONENODE(b) )
+ PG_RETURN_POINTER(result);
+
+ if ( LTG_ISONENODE(a) ) {
+ *result = ( ISEQ(LTG_NODE(a), LTG_NODE(b)) ) ? true : false;
+ } else {
+ int4 i;
+ BITVECP sa=LTG_SIGN(a), sb=LTG_SIGN(b);
+
+ if ( LTG_ISALLTRUE(a) != LTG_ISALLTRUE(b) )
+ PG_RETURN_POINTER(result);
+
+ if ( !ISEQ(LTG_LNODE(a), LTG_LNODE(b)) )
+ PG_RETURN_POINTER(result);
+ if ( !ISEQ(LTG_RNODE(a), LTG_RNODE(b)) )
+ PG_RETURN_POINTER(result);
+
+ *result = true;
+ if ( !LTG_ISALLTRUE(a) )
+ LOOPBYTE(
+ if ( sa[i] != sb[i] ) {
+ *result = false;
+ break;
+ }
+ );
+ }
+
+ PG_RETURN_POINTER(result);
+}
+
+static void
+hashing(BITVECP sign, ltree *t) {
+ int tlen = t->numlevel;
+ ltree_level *cur = LTREE_FIRST(t);
+ int hash;
+
+ while(tlen > 0) {
+ hash = crc32_sz( cur->name, cur->len );
+ HASH( sign, hash );
+ cur = LEVEL_NEXT(cur);
+ tlen--;
+ }
+}
+
+Datum
+ltree_union(PG_FUNCTION_ARGS) {
+ bytea *entryvec = (bytea *) PG_GETARG_POINTER(0);
+ int *size = (int *) PG_GETARG_POINTER(1);
+ BITVEC base;
+ int4 len = (VARSIZE(entryvec) - VARHDRSZ) / sizeof(GISTENTRY);
+ int4 i,j;
+ ltree_gist *result,*cur;
+ ltree *left=NULL, *right=NULL, *curtree;
+ bool isalltrue = false;
+ bool isleqr;
+
+ MemSet( (void*)base, 0, sizeof(BITVEC) );
+ for(j=0;j<len;j++) {
+ cur = GETENTRY(entryvec, j);
+ if ( LTG_ISONENODE(cur) ) {
+ curtree = LTG_NODE(cur);
+ hashing(base,curtree);
+ if ( !left || ltree_compare( left, curtree ) > 0 )
+ left = curtree;
+ if ( !right || ltree_compare( right, curtree ) < 0 )
+ right = curtree;
+ } else {
+ if ( isalltrue || LTG_ISALLTRUE(cur) )
+ isalltrue = true;
+ else {
+ BITVECP sc=LTG_SIGN(cur);
+ LOOPBYTE(
+ ((unsigned char*)base)[i] |= sc[i];
+ );
+ }
+
+ curtree = LTG_LNODE(cur);
+ if ( !left || ltree_compare( left, curtree ) > 0 )
+ left = curtree;
+ curtree = LTG_RNODE(cur);
+ if ( !right || ltree_compare( right, curtree ) < 0 )
+ right = curtree;
+ }
+ }
+
+ if ( isalltrue == false ) {
+ isalltrue = true;
+ LOOPBYTE(
+ if ( ((unsigned char*)base)[i] != 0xff ) {
+ isalltrue = false;
+ break;
+ }
+ );
+ }
+
+ isleqr = ( left==right || ISEQ(left,right) ) ? true : false;
+ *size = LTG_HDRSIZE + ( (isalltrue) ? 0 : SIGLEN ) + left->len + ( (isleqr) ? 0 : right->len );
+
+ result = (ltree_gist*)palloc( *size );
+ result->len = *size;
+ result->flag = 0;
+
+ if ( isalltrue )
+ result->flag |= LTG_ALLTRUE;
+ else
+ memcpy( (void*)LTG_SIGN(result), base, SIGLEN );
+
+ memcpy( (void*)LTG_LNODE(result), (void*)left, left->len );
+ if ( isleqr )
+ result->flag |= LTG_NORIGHT;
+ else
+ memcpy( (void*)LTG_RNODE(result), (void*)right, right->len );
+
+ PG_RETURN_POINTER(result);
+}
+
+Datum
+ltree_penalty(PG_FUNCTION_ARGS) {
+ ltree_gist *origval = (ltree_gist*)DatumGetPointer( ( (GISTENTRY *)PG_GETARG_POINTER(0) )->key );
+ ltree_gist *newval = (ltree_gist*)DatumGetPointer( ( (GISTENTRY *)PG_GETARG_POINTER(1) )->key );
+ float *penalty = (float *) PG_GETARG_POINTER(2);
+ int4 cmpr,cmpl;
+
+ cmpl = ltree_compare( LTG_GETLNODE(origval), LTG_GETLNODE(newval) );
+ cmpr = ltree_compare( LTG_GETRNODE(newval), LTG_GETRNODE(origval));
+
+ *penalty = max( cmpl, 0 ) + max( cmpr, 0 );
+
+ PG_RETURN_POINTER(penalty);
+}
+
+/* used for sorting */
+typedef struct rix {
+ int index;
+ ltree *r;
+} RIX;
+
+static int
+treekey_cmp(const void *a, const void *b) {
+ return ltree_compare(
+ ((RIX *) a)->r,
+ ((RIX *) b)->r
+ );
+}
+
+
+Datum
+ltree_picksplit(PG_FUNCTION_ARGS) {
+ bytea *entryvec = (bytea*) PG_GETARG_POINTER(0);
+ GIST_SPLITVEC *v = (GIST_SPLITVEC*) PG_GETARG_POINTER(1);
+ OffsetNumber j;
+ int4 i;
+ RIX *array;
+ OffsetNumber maxoff;
+ int nbytes;
+ int size;
+ ltree *lu_l,*lu_r, *ru_l, *ru_r;
+ ltree_gist *lu, *ru;
+ BITVEC ls,rs;
+ bool lisat=false, risat=false, isleqr;
+
+ memset( (void*)ls,0,sizeof(BITVEC) );
+ memset( (void*)rs,0,sizeof(BITVEC) );
+ maxoff = ((VARSIZE(entryvec) - VARHDRSZ) / sizeof(GISTENTRY)) - 1;
+ nbytes = (maxoff + 2) * sizeof(OffsetNumber);
+ v->spl_left = (OffsetNumber *) palloc(nbytes);
+ v->spl_right = (OffsetNumber *) palloc(nbytes);
+ v->spl_nleft = 0;
+ v->spl_nright = 0;
+ array = (RIX *) palloc(sizeof(RIX) * (maxoff + 1));
+
+ /* copy the data into RIXes, and sort the RIXes */
+ for (j = FirstOffsetNumber; j <= maxoff; j = OffsetNumberNext(j)) {
+ array[j].index = j;
+ lu = GETENTRY( entryvec, j ); /* use as tmp val */
+ array[j].r = LTG_GETLNODE(lu);
+ }
+
+ qsort((void *) &array[FirstOffsetNumber], maxoff - FirstOffsetNumber + 1,
+ sizeof(RIX), treekey_cmp);
+
+ lu_l = lu_r = ru_l = ru_r = NULL;
+ for (j = FirstOffsetNumber; j <= maxoff; j = OffsetNumberNext(j)) {
+ lu = GETENTRY( entryvec, array[j].index ); /* use as tmp val */
+ if (j <= (maxoff - FirstOffsetNumber + 1) / 2) {
+ v->spl_left[v->spl_nleft] = array[j].index;
+ v->spl_nleft++;
+ if ( lu_r==NULL || ltree_compare( LTG_GETRNODE(lu), lu_r ) > 0 )
+ lu_r = LTG_GETRNODE(lu);
+ if ( LTG_ISONENODE(lu) )
+ hashing(ls,LTG_NODE(lu));
+ else {
+ if ( lisat || LTG_ISALLTRUE(lu) )
+ lisat = true;
+ else {
+ BITVECP sc=LTG_SIGN(lu);
+ LOOPBYTE(
+ ((unsigned char*)ls)[i] |= sc[i];
+ );
+ }
+ }
+ } else {
+ v->spl_right[v->spl_nright] = array[j].index;
+ v->spl_nright++;
+ if ( ru_r==NULL || ltree_compare( LTG_GETRNODE(lu), ru_r ) > 0 )
+ ru_r = LTG_GETRNODE(lu);
+ if ( LTG_ISONENODE(lu) )
+ hashing(rs,LTG_NODE(lu));
+ else {
+ if ( risat || LTG_ISALLTRUE(lu) )
+ risat = true;
+ else {
+ BITVECP sc=LTG_SIGN(lu);
+ LOOPBYTE(
+ ((unsigned char*)rs)[i] |= sc[i];
+ );
+ }
+ }
+ }
+ }
+
+ if ( lisat == false ) {
+ lisat = true;
+ LOOPBYTE(
+ if ( ((unsigned char*)ls)[i] != 0xff ) {
+ lisat = false;
+ break;
+ }
+ );
+ }
+
+ if ( risat == false ) {
+ risat = true;
+ LOOPBYTE(
+ if ( ((unsigned char*)rs)[i] != 0xff ) {
+ risat = false;
+ break;
+ }
+ );
+ }
+
+ lu_l = LTG_GETLNODE( GETENTRY( entryvec, array[FirstOffsetNumber].index ) );
+ isleqr = ( lu_l==lu_r || ISEQ(lu_l,lu_r) ) ? true : false;
+ size = LTG_HDRSIZE + ( (lisat) ? 0 : SIGLEN ) + lu_l->len + ( (isleqr) ? 0 : lu_r->len );
+ lu = (ltree_gist*)palloc( size );
+ lu->len = size;
+ lu->flag = 0;
+ if ( lisat )
+ lu->flag |= LTG_ALLTRUE;
+ else
+ memcpy( (void*)LTG_SIGN(lu), ls, SIGLEN );
+ memcpy( (void*)LTG_LNODE(lu), (void*)lu_l, lu_l->len );
+ if ( isleqr )
+ lu->flag |= LTG_NORIGHT;
+ else
+ memcpy( (void*)LTG_RNODE(lu), (void*)lu_r, lu_r->len );
+
+
+ ru_l = LTG_GETLNODE( GETENTRY( entryvec, array[ 1 + ((maxoff - FirstOffsetNumber + 1) / 2) ].index ) );
+ isleqr = ( ru_l==ru_r || ISEQ(ru_l,ru_r) ) ? true : false;
+ size = LTG_HDRSIZE + ( (risat) ? 0 : SIGLEN ) + ru_l->len + ( (isleqr) ? 0 : ru_r->len );
+ ru = (ltree_gist*)palloc( size );
+ ru->len = size;
+ ru->flag = 0;
+ if ( risat )
+ ru->flag |= LTG_ALLTRUE;
+ else
+ memcpy( (void*)LTG_SIGN(ru), rs, SIGLEN );
+ memcpy( (void*)LTG_LNODE(ru), (void*)ru_l, ru_l->len );
+ if ( isleqr )
+ ru->flag |= LTG_NORIGHT;
+ else
+ memcpy( (void*)LTG_RNODE(ru), (void*)ru_r, ru_r->len );
+
+ pfree(array);
+ v->spl_ldatum = PointerGetDatum(lu);
+ v->spl_rdatum = PointerGetDatum(ru);
+
+ PG_RETURN_POINTER(v);
+}
+
+static bool
+gist_isparent(ltree_gist *key, ltree *query) {
+ int4 numlevel = query->numlevel;
+ int i;
+
+ for(i=query->numlevel;i>=0;i--) {
+ query->numlevel=i;
+ if ( ltree_compare(query,LTG_GETLNODE(key)) >=0 && ltree_compare(query,LTG_GETRNODE(key)) <= 0 ) {
+ query->numlevel = numlevel;
+ return true;
+ }
+ }
+
+ query->numlevel = numlevel;
+ return false;
+}
+
+static bool
+gist_ischild(ltree_gist *key, ltree *query) {
+ ltree *left = LTG_GETLNODE(key);
+ ltree *right = LTG_GETRNODE(key);
+ int4 numlevelL = left->numlevel;
+ int4 numlevelR = right->numlevel;
+ bool res = true;
+
+ if ( numlevelL > query->numlevel )
+ left->numlevel = query->numlevel;
+
+ if ( ltree_compare(query,left) < 0 )
+ res = false;
+
+ if ( numlevelR > query->numlevel )
+ right->numlevel = query->numlevel;
+
+ if ( res && ltree_compare(query,right) > 0 )
+ res = false;
+
+ left->numlevel = numlevelL;
+ right->numlevel = numlevelR;
+ return res;
+}
+
+static bool
+gist_qe(ltree_gist *key, lquery* query) {
+ lquery_level *curq = LQUERY_FIRST(query);
+ BITVECP sign = LTG_SIGN(key);
+ int qlen = query->numlevel;
+
+ if ( LTG_ISALLTRUE(key) )
+ return true;
+
+ while( qlen>0 ) {
+ if ( curq->numvar && LQL_CANLOOKSIGN(curq) ) {
+ bool isexist=false;
+ int vlen = curq->numvar;
+ lquery_variant *curv = LQL_FIRST(curq);
+ while( vlen>0 ) {
+ if ( GETBIT( sign, HASHVAL( curv->val ) ) ) {
+ isexist=true;
+ break;
+ }
+ curv = LVAR_NEXT(curv);
+ vlen--;
+ }
+ if ( !isexist )
+ return false;
+ }
+
+ curq = LQL_NEXT(curq);
+ qlen--;
+ }
+
+ return true;
+}
+
+static int
+gist_tqcmp(ltree* t, lquery* q) {
+ ltree_level *al = LTREE_FIRST(t);
+ lquery_level *ql = LQUERY_FIRST(q);
+ lquery_variant *bl;
+ int an = t->numlevel;
+ int bn = q->firstgood;
+ int res = 0;
+
+ while( an>0 && bn>0 ) {
+ bl = LQL_FIRST(ql);
+ if ( (res = strncmp( al->name, bl->name, min(al->len, bl->len))) == 0 ) {
+ if ( al->len != bl->len )
+ return al->len - bl->len;
+ } else
+ return res;
+ an--; bn--;
+ al = LEVEL_NEXT(al);
+ ql = LQL_NEXT(ql);
+ }
+
+ return t->numlevel - q->firstgood;
+}
+
+static bool
+gist_between(ltree_gist *key, lquery* query) {
+ ltree *left = LTG_GETLNODE(key);
+ ltree *right = LTG_GETRNODE(key);
+ int4 numlevelL = left->numlevel;
+ int4 numlevelR = right->numlevel;
+ bool res = true;
+
+ if ( query->firstgood == 0 )
+ return true;
+
+ if ( numlevelL > query->firstgood )
+ left->numlevel = query->firstgood;
+
+ if ( gist_tqcmp(left,query) > 0 )
+ res = false;
+
+ if ( numlevelR > query->firstgood )
+ right->numlevel = query->firstgood;
+
+ if ( res && gist_tqcmp(right,query) < 0 )
+ res = false;
+
+ left->numlevel = numlevelL;
+ right->numlevel = numlevelR;
+ return res;
+}
+
+static bool
+checkcondition_bit(void *checkval, ITEM* val ) {
+ return ( FLG_CANLOOKSIGN(val->flag) ) ? GETBIT( checkval, HASHVAL( val->val ) ) : true;
+}
+
+static bool
+gist_qtxt(ltree_gist *key, ltxtquery* query) {
+ if ( LTG_ISALLTRUE(key) )
+ return true;
+
+ return execute(
+ GETQUERY(query),
+ (void*)LTG_SIGN(key), false,
+ checkcondition_bit
+ );
+}
+
+
+Datum
+ltree_consistent(PG_FUNCTION_ARGS) {
+ GISTENTRY *entry = (GISTENTRY*)PG_GETARG_POINTER(0);
+ char *query = (char*)DatumGetPointer( PG_DETOAST_DATUM(PG_GETARG_DATUM(1)) );
+ ltree_gist *key = (ltree_gist*)DatumGetPointer( entry->key );
+ StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
+ bool res = false;
+
+#ifndef assert_enabled
+#define assert_enabled 0
+#endif
+
+ switch( strategy ) {
+ case BTLessStrategyNumber:
+ res = ( GIST_LEAF( entry ) ) ?
+ ( ltree_compare((ltree*)query,LTG_NODE(key)) > 0 )
+ :
+ ( ltree_compare((ltree*)query,LTG_GETLNODE(key)) >= 0 );
+ break;
+ case BTLessEqualStrategyNumber:
+ res = ( ltree_compare((ltree*)query,LTG_GETLNODE(key)) >= 0 );
+ break;
+ case BTEqualStrategyNumber:
+ if ( GIST_LEAF( entry ) )
+ res = ( ltree_compare((ltree*)query,LTG_NODE(key)) == 0 );
+ else
+ res = (
+ ltree_compare((ltree*)query,LTG_GETLNODE(key)) >= 0
+ &&
+ ltree_compare((ltree*)query,LTG_GETRNODE(key)) <= 0
+ );
+ break;
+ case BTGreaterEqualStrategyNumber:
+ res = ( ltree_compare((ltree*)query,LTG_GETRNODE(key)) <= 0 );
+ break;
+ case BTGreaterStrategyNumber:
+ res = ( GIST_LEAF( entry ) ) ?
+ ( ltree_compare((ltree*)query,LTG_GETRNODE(key)) < 0 )
+ :
+ ( ltree_compare((ltree*)query,LTG_GETRNODE(key)) <= 0 );
+ break;
+ case 10:
+ res = ( GIST_LEAF( entry ) ) ?
+ inner_isparent( (ltree*)query, LTG_NODE(key) )
+ :
+ gist_isparent( key, (ltree*)query);
+ break;
+ case 11:
+ res = ( GIST_LEAF( entry ) ) ?
+ inner_isparent( LTG_NODE(key), (ltree*)query)
+ :
+ gist_ischild( key, (ltree*)query);
+ break;
+ case 12:
+ case 13:
+ if ( GIST_LEAF( entry ) )
+ res = DatumGetBool( DirectFunctionCall2( ltq_regex,
+ PointerGetDatum( LTG_NODE(key) ),
+ PointerGetDatum( (lquery*)query )
+ ) );
+ else
+ res = ( gist_qe(key, (lquery*)query) && gist_between(key, (lquery*)query) );
+ break;
+ case 14:
+ case 15:
+ if ( GIST_LEAF( entry ) )
+ res = DatumGetBool( DirectFunctionCall2( ltxtq_exec,
+ PointerGetDatum( LTG_NODE(key) ),
+ PointerGetDatum( (lquery*)query )
+ ) );
+ else
+ res = gist_qtxt(key, (ltxtquery*)query);
+ break;
+ default:
+ elog(ERROR,"Unknown StrategyNumber: %d", strategy);
+ }
+ PG_RETURN_BOOL(res);
+}
+
diff --git a/contrib/ltree/ltree_io.c b/contrib/ltree/ltree_io.c
new file mode 100644
index 00000000000..845e61eaa77
--- /dev/null
+++ b/contrib/ltree/ltree_io.c
@@ -0,0 +1,433 @@
+/*
+ * in/out function for ltree and lquery
+ * Teodor Sigaev <teodor@stack.net>
+ */
+
+#include "ltree.h"
+#include <ctype.h>
+#include "crc32.h"
+
+PG_FUNCTION_INFO_V1(ltree_in);
+Datum ltree_in(PG_FUNCTION_ARGS);
+PG_FUNCTION_INFO_V1(ltree_out);
+Datum ltree_out(PG_FUNCTION_ARGS);
+
+PG_FUNCTION_INFO_V1(lquery_in);
+Datum lquery_in(PG_FUNCTION_ARGS);
+PG_FUNCTION_INFO_V1(lquery_out);
+Datum lquery_out(PG_FUNCTION_ARGS);
+
+
+#define UNCHAR elog(ERROR,"Syntax error in position %d near '%c'", ptr-buf, *ptr)
+
+typedef struct {
+ char* start;
+ int len;
+ int flag;
+} nodeitem;
+
+#define LTPRS_WAITNAME 0
+#define LTPRS_WAITDELIM 1
+
+Datum
+ltree_in(PG_FUNCTION_ARGS) {
+ char *buf = (char *) PG_GETARG_POINTER(0);
+ char *ptr;
+ nodeitem *list, *lptr;
+ int num=0, totallen = 0;
+ int state = LTPRS_WAITNAME;
+ ltree *result;
+ ltree_level *curlevel;
+
+ ptr=buf;
+ while( *ptr ) {
+ if ( *ptr == '.' )
+ num++;
+ ptr++;
+ }
+
+ list = lptr = (nodeitem*) palloc( sizeof(nodeitem)*(num+1) );
+ ptr=buf;
+ while( *ptr ) {
+ if ( state == LTPRS_WAITNAME ) {
+ if ( ISALNUM(*ptr) ) {
+ lptr->start = ptr;
+ state = LTPRS_WAITDELIM;
+ } else
+ UNCHAR;
+ } else if ( state == LTPRS_WAITDELIM ) {
+ if ( *ptr == '.' ) {
+ lptr->len = ptr - lptr->start;
+ if ( lptr->len > 255 )
+ elog(ERROR,"Name of level is too long (%d, must be < 256) in position %d",
+ lptr->len, lptr->start - buf);
+ totallen += lptr->len + LEVEL_HDRSIZE;
+ lptr++;
+ state = LTPRS_WAITNAME;
+ } else if ( !ISALNUM(*ptr) )
+ UNCHAR;
+ } else
+ elog(ERROR,"Inner error in parser");
+ ptr++;
+ }
+
+ if ( state == LTPRS_WAITDELIM ) {
+ lptr->len = ptr - lptr->start;
+ if ( lptr->len > 255 )
+ elog(ERROR,"Name of level is too long (%d, must be < 256) in position %d",
+ lptr->len, lptr->start - buf);
+ totallen += lptr->len + LEVEL_HDRSIZE;
+ lptr++;
+ } else if ( ! (state == LTPRS_WAITNAME && lptr == list) )
+ elog(ERROR,"Unexpected end of line");
+
+ result = (ltree*)palloc( LTREE_HDRSIZE + totallen );
+ result->len = LTREE_HDRSIZE + totallen;
+ result->numlevel = lptr-list;
+ curlevel = LTREE_FIRST(result);
+ lptr=list;
+ while( lptr-list < result->numlevel ) {
+ curlevel->len = (uint8) lptr->len;
+ memcpy( curlevel->name, lptr->start, lptr->len);
+ curlevel = LEVEL_NEXT(curlevel);
+ lptr++;
+ }
+
+ pfree(list);
+
+ PG_RETURN_POINTER(result);
+}
+
+Datum
+ltree_out(PG_FUNCTION_ARGS) {
+ ltree *in = PG_GETARG_LTREE(0);
+ char *buf,*ptr;
+ int i;
+ ltree_level *curlevel;
+
+ ptr = buf = (char*)palloc( in->len );
+ curlevel = LTREE_FIRST(in);
+ for(i=0;i<in->numlevel;i++) {
+ if ( i!=0 ) {
+ *ptr = '.';
+ ptr++;
+ }
+ memcpy( ptr, curlevel->name, curlevel->len );
+ ptr+=curlevel->len;
+ curlevel = LEVEL_NEXT(curlevel);
+ }
+
+ *ptr='\0';
+ PG_FREE_IF_COPY(in,0);
+
+ PG_RETURN_POINTER(buf);
+}
+
+#define LQPRS_WAITLEVEL 0
+#define LQPRS_WAITDELIM 1
+#define LQPRS_WAITOPEN 2
+#define LQPRS_WAITFNUM 3
+#define LQPRS_WAITSNUM 4
+#define LQPRS_WAITND 5
+#define LQPRS_WAITCLOSE 6
+#define LQPRS_WAITEND 7
+#define LQPRS_WAITVAR 8
+
+
+#define GETVAR(x) ( *((nodeitem**)LQL_FIRST(x)) )
+
+Datum
+lquery_in(PG_FUNCTION_ARGS) {
+ char *buf = (char *) PG_GETARG_POINTER(0);
+ char *ptr;
+ int num=0, totallen = 0, numOR=0;
+ int state = LQPRS_WAITLEVEL;
+ lquery *result;
+ nodeitem *lptr=NULL;
+ lquery_level *cur,*curqlevel, *tmpql;
+ lquery_variant *lrptr=NULL;
+ bool hasnot=false;
+ bool wasbad=false;
+
+ ptr=buf;
+ while( *ptr ) {
+ if ( *ptr == '.' )
+ num++;
+ else if ( *ptr == '|' )
+ numOR++;
+ ptr++;
+ }
+
+ num++;
+ curqlevel = tmpql = (lquery_level*) palloc( ( LQL_HDRSIZE+sizeof(nodeitem*) )*(num) );
+ memset((void*)tmpql,0, ( LQL_HDRSIZE+sizeof(nodeitem*) )*(num) );
+ ptr=buf;
+ while( *ptr ) {
+ if ( state==LQPRS_WAITLEVEL ) {
+ if ( ISALNUM(*ptr) ) {
+ GETVAR(curqlevel) = lptr = (nodeitem*)palloc( sizeof(nodeitem)*(numOR+1) );
+ memset((void*)GETVAR(curqlevel), 0,sizeof(nodeitem)*(numOR+1) );
+ lptr->start = ptr;
+ state = LQPRS_WAITDELIM;
+ curqlevel->numvar = 1;
+ } else if ( *ptr == '!' ) {
+ GETVAR(curqlevel) = lptr = (nodeitem*)palloc( sizeof(nodeitem)*(numOR+1) );
+ memset((void*)GETVAR(curqlevel), 0,sizeof(nodeitem)*(numOR+1) );
+ lptr->start = ptr+1;
+ state = LQPRS_WAITDELIM;
+ curqlevel->numvar = 1;
+ curqlevel->flag |= LQL_NOT;
+ hasnot=true;
+ } else if ( *ptr == '*' ) {
+ state = LQPRS_WAITOPEN;
+ } else
+ UNCHAR;
+ } else if ( state==LQPRS_WAITVAR ) {
+ if ( ISALNUM(*ptr) ) {
+ lptr++;
+ lptr->start = ptr;
+ state = LQPRS_WAITDELIM;
+ curqlevel->numvar++;
+ } else
+ UNCHAR;
+ } else if ( state==LQPRS_WAITDELIM ) {
+ if ( *ptr == '@' ) {
+ if ( lptr->start == ptr )
+ UNCHAR;
+ lptr->flag |= LVAR_INCASE;
+ curqlevel->flag |= LVAR_INCASE;
+ } else if ( *ptr == '*' ) {
+ if ( lptr->start == ptr )
+ UNCHAR;
+ lptr->flag |= LVAR_ANYEND;
+ curqlevel->flag |= LVAR_ANYEND;
+ } else if ( *ptr == '%' ) {
+ if ( lptr->start == ptr )
+ UNCHAR;
+ lptr->flag |= LVAR_SUBLEXEM;
+ curqlevel->flag |= LVAR_SUBLEXEM;
+ } else if ( *ptr == '|' ) {
+ lptr->len = ptr - lptr->start -
+ ( ( lptr->flag & LVAR_SUBLEXEM ) ? 1 : 0 ) -
+ ( ( lptr->flag & LVAR_INCASE ) ? 1 : 0 ) -
+ ( ( lptr->flag & LVAR_ANYEND ) ? 1 : 0 );
+ if ( lptr->len > 255 )
+ elog(ERROR,"Name of level is too long (%d, must be < 256) in position %d",
+ lptr->len, lptr->start - buf);
+ state = LQPRS_WAITVAR;
+ } else if ( *ptr == '.' ) {
+ lptr->len = ptr - lptr->start -
+ ( ( lptr->flag & LVAR_SUBLEXEM ) ? 1 : 0 ) -
+ ( ( lptr->flag & LVAR_INCASE ) ? 1 : 0 ) -
+ ( ( lptr->flag & LVAR_ANYEND ) ? 1 : 0 );
+ if ( lptr->len > 255 )
+ elog(ERROR,"Name of level is too long (%d, must be < 256) in position %d",
+ lptr->len, lptr->start - buf);
+ state = LQPRS_WAITLEVEL;
+ curqlevel++;
+ } else if ( ISALNUM(*ptr) ) {
+ if ( lptr->flag )
+ UNCHAR;
+ } else
+ UNCHAR;
+ } else if ( state == LQPRS_WAITOPEN ) {
+ if ( *ptr == '{' ) {
+ state = LQPRS_WAITFNUM;
+ } else if ( *ptr == '.' ) {
+ curqlevel->low=0;
+ curqlevel->high=0xffff;
+ curqlevel++;
+ state = LQPRS_WAITLEVEL;
+ } else
+ UNCHAR;
+ } else if ( state == LQPRS_WAITFNUM ) {
+ if ( *ptr == ',' ) {
+ state = LQPRS_WAITSNUM;
+ } else if ( isdigit(*ptr) ) {
+ curqlevel->low = atoi( ptr );
+ state = LQPRS_WAITND;
+ } else
+ UNCHAR;
+ } else if ( state == LQPRS_WAITSNUM ) {
+ if ( isdigit(*ptr) ) {
+ curqlevel->high = atoi( ptr );
+ state = LQPRS_WAITCLOSE;
+ } else if ( *ptr == '}' ) {
+ curqlevel->high = 0xffff;
+ state = LQPRS_WAITEND;
+ } else
+ UNCHAR;
+ } else if ( state == LQPRS_WAITCLOSE ) {
+ if ( *ptr == '}' )
+ state = LQPRS_WAITEND;
+ else if ( !isdigit(*ptr) )
+ UNCHAR;
+ } else if ( state == LQPRS_WAITND ) {
+ if ( *ptr == '}' ) {
+ curqlevel->high = curqlevel->low;
+ state = LQPRS_WAITEND;
+ } else if ( *ptr == ',' )
+ state = LQPRS_WAITSNUM;
+ else if ( !isdigit(*ptr) )
+ UNCHAR;
+ } else if ( state == LQPRS_WAITEND ) {
+ if ( *ptr == '.' ) {
+ state = LQPRS_WAITLEVEL;
+ curqlevel++;
+ } else
+ UNCHAR;
+ } else
+ elog(ERROR,"Inner error in parser");
+ ptr++;
+ }
+
+ if ( state==LQPRS_WAITDELIM ) {
+ if ( lptr->start == ptr )
+ elog(ERROR,"Unexpected end of line");
+ lptr->len = ptr - lptr->start -
+ ( ( lptr->flag & LVAR_SUBLEXEM ) ? 1 : 0 ) -
+ ( ( lptr->flag & LVAR_INCASE ) ? 1 : 0 ) -
+ ( ( lptr->flag & LVAR_ANYEND ) ? 1 : 0 );
+ if ( lptr->len==0 )
+ elog(ERROR,"Unexpected end of line");
+ if ( lptr->len > 255 )
+ elog(ERROR,"Name of level is too long (%d, must be < 256) in position %d",
+ lptr->len, lptr->start - buf);
+ } else if ( state == LQPRS_WAITOPEN ) {
+ curqlevel->high = 0xffff;
+ } else if ( state != LQPRS_WAITEND )
+ elog(ERROR,"Unexpected end of line");
+
+ curqlevel = tmpql;
+ totallen = LQUERY_HDRSIZE;
+ while( curqlevel-tmpql < num ) {
+ totallen += LQL_HDRSIZE;
+ if ( curqlevel->numvar ) {
+ lptr = GETVAR(curqlevel);
+ while( lptr-GETVAR(curqlevel) < curqlevel->numvar ) {
+ totallen += LVAR_HDRSIZE + lptr->len;
+ lptr++;
+ }
+ } else if ( curqlevel->low > curqlevel->high )
+ elog(ERROR,"Low limit(%d) is greater than upper(%d)",curqlevel->low,curqlevel->high );
+ curqlevel++;
+ }
+
+ result = (lquery*)palloc( totallen );
+ result->len = totallen;
+ result->numlevel = num;
+ result->firstgood = 0;
+ result->flag=0;
+ if ( hasnot )
+ result->flag |= LQUERY_HASNOT;
+ cur = LQUERY_FIRST(result);
+ curqlevel = tmpql;
+ while( curqlevel-tmpql < num ) {
+ memcpy(cur,curqlevel,LQL_HDRSIZE);
+ cur->totallen=LQL_HDRSIZE;
+ if ( curqlevel->numvar ) {
+ lrptr = LQL_FIRST(cur);
+ lptr = GETVAR(curqlevel);
+ while( lptr-GETVAR(curqlevel) < curqlevel->numvar ) {
+ cur->totallen += LVAR_HDRSIZE + lptr->len;
+ lrptr->len = lptr->len;
+ lrptr->flag = lptr->flag;
+ lrptr->val = crc32_sz((uint8 *) lptr->start, lptr->len);
+ memcpy( lrptr->name, lptr->start, lptr->len);
+ lptr++;
+ lrptr = LVAR_NEXT( lrptr );
+ }
+ pfree( GETVAR(curqlevel) );
+ if ( cur->numvar > 1 || cur->flag != 0 )
+ wasbad=true;
+ else if ( wasbad==false )
+ (result->firstgood)++;
+ } else
+ wasbad=true;
+ curqlevel++;
+ cur = LQL_NEXT(cur);
+ }
+
+ pfree(tmpql);
+ PG_RETURN_POINTER(result);
+}
+
+Datum
+lquery_out(PG_FUNCTION_ARGS) {
+ lquery *in = PG_GETARG_LQUERY(0);
+ char *buf,*ptr;
+ int i,j,totallen=0;
+ lquery_level *curqlevel;
+ lquery_variant *curtlevel;
+
+ curqlevel = LQUERY_FIRST(in);
+ for(i=0;i<in->numlevel;i++) {
+ if ( curqlevel->numvar )
+ totallen = (curqlevel->numvar*4) + 1 + curqlevel->totallen;
+ else
+ totallen = 2*11 + 4;
+ totallen++;
+ curqlevel = LQL_NEXT(curqlevel);
+ }
+
+
+ ptr = buf = (char*)palloc( totallen );
+ curqlevel = LQUERY_FIRST(in);
+ for(i=0;i<in->numlevel;i++) {
+ if ( i!=0 ) {
+ *ptr = '.';
+ ptr++;
+ }
+ if ( curqlevel->numvar ) {
+ if ( curqlevel->flag & LQL_NOT ) {
+ *ptr = '!';
+ ptr++;
+ }
+ curtlevel = LQL_FIRST(curqlevel);
+ for(j=0;j<curqlevel->numvar;j++) {
+ if ( j!=0 ) {
+ *ptr = '|';
+ ptr++;
+ }
+ memcpy( ptr, curtlevel->name, curtlevel->len );
+ ptr+=curtlevel->len;
+ if ( (curtlevel->flag & LVAR_SUBLEXEM) ) {
+ *ptr = '%';
+ ptr++;
+ }
+ if ( (curtlevel->flag & LVAR_INCASE) ) {
+ *ptr = '@';
+ ptr++;
+ }
+ if ( (curtlevel->flag & LVAR_ANYEND) ) {
+ *ptr = '*';
+ ptr++;
+ }
+ curtlevel = LVAR_NEXT(curtlevel);
+ }
+ } else {
+ if ( curqlevel->low == curqlevel->high ) {
+ sprintf(ptr,"*{%d}",curqlevel->low);
+ } else if ( curqlevel->low == 0 ) {
+ if ( curqlevel->high == 0xffff ) {
+ *ptr='*';
+ *(ptr+1)='\0';
+ } else
+ sprintf(ptr,"*{,%d}",curqlevel->high);
+ } else if ( curqlevel->high == 0xffff ) {
+ sprintf(ptr,"*{%d,}",curqlevel->low);
+ } else
+ sprintf(ptr,"*{%d,%d}", curqlevel->low, curqlevel->high);
+ ptr = strchr(ptr,'\0');
+ }
+
+ curqlevel = LQL_NEXT(curqlevel);
+ }
+
+ *ptr='\0';
+ PG_FREE_IF_COPY(in,0);
+
+ PG_RETURN_POINTER(buf);
+}
+
+
diff --git a/contrib/ltree/ltree_op.c b/contrib/ltree/ltree_op.c
new file mode 100644
index 00000000000..6d504713e5b
--- /dev/null
+++ b/contrib/ltree/ltree_op.c
@@ -0,0 +1,310 @@
+/*
+ * op function for ltree
+ * Teodor Sigaev <teodor@stack.net>
+ */
+
+#include "ltree.h"
+#include <ctype.h>
+
+/* compare functions */
+PG_FUNCTION_INFO_V1(ltree_cmp);
+PG_FUNCTION_INFO_V1(ltree_lt);
+PG_FUNCTION_INFO_V1(ltree_le);
+PG_FUNCTION_INFO_V1(ltree_eq);
+PG_FUNCTION_INFO_V1(ltree_ne);
+PG_FUNCTION_INFO_V1(ltree_ge);
+PG_FUNCTION_INFO_V1(ltree_gt);
+PG_FUNCTION_INFO_V1(nlevel);
+PG_FUNCTION_INFO_V1(ltree_isparent);
+PG_FUNCTION_INFO_V1(ltree_risparent);
+PG_FUNCTION_INFO_V1(subltree);
+PG_FUNCTION_INFO_V1(subpath);
+PG_FUNCTION_INFO_V1(ltree_addltree);
+PG_FUNCTION_INFO_V1(ltree_addtext);
+PG_FUNCTION_INFO_V1(ltree_textadd);
+Datum ltree_cmp(PG_FUNCTION_ARGS);
+Datum ltree_lt(PG_FUNCTION_ARGS);
+Datum ltree_le(PG_FUNCTION_ARGS);
+Datum ltree_eq(PG_FUNCTION_ARGS);
+Datum ltree_ne(PG_FUNCTION_ARGS);
+Datum ltree_ge(PG_FUNCTION_ARGS);
+Datum ltree_gt(PG_FUNCTION_ARGS);
+Datum nlevel(PG_FUNCTION_ARGS);
+Datum subltree(PG_FUNCTION_ARGS);
+Datum subpath(PG_FUNCTION_ARGS);
+Datum ltree_addltree(PG_FUNCTION_ARGS);
+Datum ltree_addtext(PG_FUNCTION_ARGS);
+Datum ltree_textadd(PG_FUNCTION_ARGS);
+
+int
+ltree_compare(const ltree *a, const ltree *b) {
+ ltree_level *al = LTREE_FIRST(a);
+ ltree_level *bl = LTREE_FIRST(b);
+ int an = a->numlevel;
+ int bn = b->numlevel;
+ int res = 0;
+
+ while( an>0 && bn>0 ) {
+ if ( (res = strncmp( al->name, bl->name, min(al->len, bl->len))) == 0 ) {
+ if ( al->len != bl->len )
+ return (al->len - bl->len)*10*(an+1);
+ } else
+ return res*10*(an+1);
+
+ an--; bn--;
+ al = LEVEL_NEXT(al);
+ bl = LEVEL_NEXT(bl);
+ }
+
+ return (a->numlevel - b->numlevel)*10*(an+1);
+}
+
+#define RUNCMP \
+ltree *a = PG_GETARG_LTREE(0); \
+ltree *b = PG_GETARG_LTREE(1); \
+int res = ltree_compare(a,b); \
+PG_FREE_IF_COPY(a,0); \
+PG_FREE_IF_COPY(b,1); \
+
+Datum
+ltree_cmp(PG_FUNCTION_ARGS) {
+ RUNCMP
+ PG_RETURN_INT32(res);
+}
+
+Datum
+ltree_lt(PG_FUNCTION_ARGS) {
+ RUNCMP
+ PG_RETURN_BOOL( (res<0) ? true : false );
+}
+
+Datum
+ltree_le(PG_FUNCTION_ARGS) {
+ RUNCMP
+ PG_RETURN_BOOL( (res<=0) ? true : false );
+}
+
+Datum
+ltree_eq(PG_FUNCTION_ARGS) {
+ RUNCMP
+ PG_RETURN_BOOL( (res==0) ? true : false );
+}
+
+Datum
+ltree_ge(PG_FUNCTION_ARGS) {
+ RUNCMP
+ PG_RETURN_BOOL( (res>=0) ? true : false );
+}
+
+Datum
+ltree_gt(PG_FUNCTION_ARGS) {
+ RUNCMP
+ PG_RETURN_BOOL( (res>0) ? true : false );
+}
+
+Datum
+ltree_ne(PG_FUNCTION_ARGS) {
+ RUNCMP
+ PG_RETURN_BOOL( (res!=0) ? true : false );
+}
+
+Datum
+nlevel(PG_FUNCTION_ARGS) {
+ ltree *a = PG_GETARG_LTREE(0);
+ int res = a->numlevel;
+ PG_FREE_IF_COPY(a,0);
+ PG_RETURN_INT32(res);
+}
+
+bool
+inner_isparent(const ltree *c, const ltree *p) {
+ ltree_level *cl = LTREE_FIRST(c);
+ ltree_level *pl = LTREE_FIRST(p);
+ int pn = p->numlevel;
+
+ if ( pn > c->numlevel )
+ return false;
+
+ while( pn>0 ) {
+ if ( cl->len != pl->len )
+ return false;
+ if ( strncmp( cl->name, pl->name, cl->len ) )
+ return false;
+
+ pn--;
+ cl = LEVEL_NEXT(cl);
+ pl = LEVEL_NEXT(pl);
+ }
+ return true;
+}
+
+Datum
+ltree_isparent(PG_FUNCTION_ARGS) {
+ ltree *c = PG_GETARG_LTREE(1);
+ ltree *p = PG_GETARG_LTREE(0);
+ bool res = inner_isparent(c,p);
+ PG_FREE_IF_COPY(c,1);
+ PG_FREE_IF_COPY(p,0);
+ PG_RETURN_BOOL( res );
+}
+
+Datum
+ltree_risparent(PG_FUNCTION_ARGS) {
+ ltree *c = PG_GETARG_LTREE(0);
+ ltree *p = PG_GETARG_LTREE(1);
+ bool res = inner_isparent(c,p);
+ PG_FREE_IF_COPY(c,0);
+ PG_FREE_IF_COPY(p,1);
+ PG_RETURN_BOOL( res );
+}
+
+
+static ltree*
+inner_subltree(ltree *t, int4 startpos, int4 endpos) {
+ char *start=NULL,*end=NULL;
+ ltree_level *ptr = LTREE_FIRST(t);
+ ltree *res;
+ int i;
+
+ if ( startpos <0 || endpos <0 || startpos>=t->numlevel || startpos >= endpos )
+ elog(ERROR,"Wrong positions");
+
+ if ( endpos > t->numlevel )
+ endpos = t->numlevel;
+
+ for(i=0;i<endpos ;i++) {
+ if ( i==startpos )
+ start = (char*)ptr;
+ if ( i==endpos-1 ) {
+ end = (char*)LEVEL_NEXT(ptr);
+ break;
+ }
+ ptr = LEVEL_NEXT(ptr);
+ }
+
+ res=(ltree*)palloc( LTREE_HDRSIZE + (end-start) );
+ res->len = LTREE_HDRSIZE + (end-start);
+ res->numlevel = endpos-startpos;
+
+ memcpy( LTREE_FIRST(res), start, end-start);
+
+ return res;
+}
+
+Datum
+subltree(PG_FUNCTION_ARGS) {
+ ltree *t = PG_GETARG_LTREE(0);
+ ltree *res = inner_subltree(t,PG_GETARG_INT32(1),PG_GETARG_INT32(2));
+
+ PG_FREE_IF_COPY(t,0);
+ PG_RETURN_POINTER(res);
+}
+
+Datum
+subpath(PG_FUNCTION_ARGS) {
+ ltree *t = PG_GETARG_LTREE(0);
+ int4 start = PG_GETARG_INT32(1);
+ int4 len = ( fcinfo->nargs==3 ) ? PG_GETARG_INT32(2) : 0;
+ int4 end;
+ ltree *res;
+
+ end = start+len;
+
+ if ( start < 0 ) {
+ start = t->numlevel + start;
+ end = start+len;
+ }
+ if ( start < 0 ) { /* start > t->numlevel */
+ start = t->numlevel + start;
+ end = start+len;
+ }
+
+ if ( len < 0 )
+ end = t->numlevel + len;
+ else if ( len == 0 )
+ end = 0xffff;
+
+ res = inner_subltree(t,start,end);
+
+ PG_FREE_IF_COPY(t,0);
+ PG_RETURN_POINTER(res);
+}
+
+static ltree*
+ltree_concat( ltree *a, ltree *b) {
+ ltree *r;
+ r=(ltree*)palloc( a->len + b->len - LTREE_HDRSIZE);
+ r->len = a->len + b->len - LTREE_HDRSIZE;
+ r->numlevel = a->numlevel + b->numlevel;
+
+ memcpy( LTREE_FIRST(r), LTREE_FIRST(a), a->len - LTREE_HDRSIZE);
+ memcpy( ((char*)LTREE_FIRST(r))+ a->len - LTREE_HDRSIZE, LTREE_FIRST(b), b->len -
+ LTREE_HDRSIZE);
+ return r;
+}
+
+Datum
+ltree_addltree(PG_FUNCTION_ARGS) {
+ ltree *a = PG_GETARG_LTREE(0);
+ ltree *b = PG_GETARG_LTREE(1);
+ ltree *r;
+
+ r = ltree_concat(a, b);
+ PG_FREE_IF_COPY(a,0);
+ PG_FREE_IF_COPY(b,1);
+ PG_RETURN_POINTER(r);
+}
+
+Datum
+ltree_addtext(PG_FUNCTION_ARGS) {
+ ltree *a = PG_GETARG_LTREE(0);
+ text *b = PG_GETARG_TEXT_P(1);
+ char *s;
+ ltree *r,*tmp;
+
+ s = (char*)palloc( VARSIZE(b) - VARHDRSZ+1 );
+ memcpy(s, VARDATA(b), VARSIZE(b) - VARHDRSZ );
+ s[VARSIZE(b) - VARHDRSZ] = '\0';
+
+ tmp = (ltree*)DatumGetPointer( DirectFunctionCall1(
+ ltree_in,
+ PointerGetDatum(s)
+ ) );
+
+ pfree(s);
+
+ r = ltree_concat(a,tmp);
+
+ pfree( tmp );
+
+ PG_FREE_IF_COPY(a,0);
+ PG_FREE_IF_COPY(b,1);
+ PG_RETURN_POINTER(r);
+}
+
+Datum
+ltree_textadd(PG_FUNCTION_ARGS) {
+ ltree *a = PG_GETARG_LTREE(1);
+ text *b = PG_GETARG_TEXT_P(0);
+ char *s;
+ ltree *r,*tmp;
+
+ s = (char*)palloc( VARSIZE(b) - VARHDRSZ + 1 );
+ memcpy(s, VARDATA(b), VARSIZE(b) - VARHDRSZ );
+ s[VARSIZE(b) - VARHDRSZ] = '\0';
+
+ tmp = (ltree*)DatumGetPointer( DirectFunctionCall1(
+ ltree_in,
+ PointerGetDatum(s)
+ ) );
+
+ pfree(s);
+
+ r = ltree_concat(tmp,a);
+
+ pfree( tmp );
+
+ PG_FREE_IF_COPY(a,1);
+ PG_FREE_IF_COPY(b,0);
+ PG_RETURN_POINTER(r);
+}
diff --git a/contrib/ltree/ltreetest.sql b/contrib/ltree/ltreetest.sql
new file mode 100644
index 00000000000..0dd6eaa63d0
--- /dev/null
+++ b/contrib/ltree/ltreetest.sql
@@ -0,0 +1,16 @@
+create table test ( path ltree);
+insert into test values ('Top');
+insert into test values ('Top.Science');
+insert into test values ('Top.Science.Astronomy');
+insert into test values ('Top.Science.Astronomy.Astrophysics');
+insert into test values ('Top.Science.Astronomy.Cosmology');
+insert into test values ('Top.Hobbies');
+insert into test values ('Top.Hobbies.Amateurs_Astronomy');
+insert into test values ('Top.Collections');
+insert into test values ('Top.Collections.Pictures');
+insert into test values ('Top.Collections.Pictures.Astronomy');
+insert into test values ('Top.Collections.Pictures.Astronomy.Stars');
+insert into test values ('Top.Collections.Pictures.Astronomy.Galaxies');
+insert into test values ('Top.Collections.Pictures.Astronomy.Astronauts');
+create index path_gist_idx on test using gist(path);
+create index path_idx on test using btree(path);
diff --git a/contrib/ltree/ltxtquery_io.c b/contrib/ltree/ltxtquery_io.c
new file mode 100644
index 00000000000..e70d643b855
--- /dev/null
+++ b/contrib/ltree/ltxtquery_io.c
@@ -0,0 +1,484 @@
+/*
+ * txtquery io
+ * Teodor Sigaev <teodor@stack.net>
+ */
+
+#include "ltree.h"
+#include <ctype.h>
+#include "crc32.h"
+
+PG_FUNCTION_INFO_V1(ltxtq_in);
+Datum ltxtq_in(PG_FUNCTION_ARGS);
+PG_FUNCTION_INFO_V1(ltxtq_out);
+Datum ltxtq_out(PG_FUNCTION_ARGS);
+
+
+/* parser's states */
+#define WAITOPERAND 1
+#define INOPERAND 2
+#define WAITOPERATOR 3
+
+/*
+ * node of query tree, also used
+ * for storing polish notation in parser
+ */
+typedef struct NODE {
+ int4 type;
+ int4 val;
+ int2 distance;
+ int2 length;
+ uint16 flag;
+ struct NODE *next;
+} NODE;
+
+typedef struct {
+ char *buf;
+ int4 state;
+ int4 count;
+ /* reverse polish notation in list (for temprorary usage) */
+ NODE *str;
+ /* number in str */
+ int4 num;
+
+ /* user-friendly operand */
+ int4 lenop;
+ int4 sumlen;
+ char *op;
+ char *curop;
+} QPRS_STATE;
+
+/*
+ * get token from query string
+ */
+static int4
+gettoken_query(QPRS_STATE * state, int4 *val, int4 *lenval, char **strval, uint16 *flag)
+{
+ while (1)
+ {
+ switch (state->state)
+ {
+ case WAITOPERAND:
+ if (*(state->buf) == '!')
+ {
+ (state->buf)++;
+ *val = (int4) '!';
+ return OPR;
+ }
+ else if (*(state->buf) == '(')
+ {
+ state->count++;
+ (state->buf)++;
+ return OPEN;
+ }
+ else if ( ISALNUM(*(state->buf)) )
+ {
+ state->state = INOPERAND;
+ *strval = state->buf;
+ *lenval = 1;
+ *flag = 0;
+ } else if ( !isspace(*(state->buf)) )
+ elog(ERROR,"Operand syntax error");
+ break;
+ case INOPERAND:
+ if ( ISALNUM(*(state->buf)) ) {
+ if ( *flag )
+ elog(ERROR,"Modificators syntax error");
+ (*lenval)++;
+ } else if ( *(state->buf) == '%' ) {
+ *flag |= LVAR_SUBLEXEM;
+ } else if ( *(state->buf) == '@' ) {
+ *flag |= LVAR_INCASE;
+ } else if ( *(state->buf) == '*' ) {
+ *flag |= LVAR_ANYEND;
+ } else {
+ state->state = WAITOPERATOR;
+ return VAL;
+ }
+ break;
+ case WAITOPERATOR:
+ if (*(state->buf) == '&' || *(state->buf) == '|')
+ {
+ state->state = WAITOPERAND;
+ *val = (int4) *(state->buf);
+ (state->buf)++;
+ return OPR;
+ }
+ else if (*(state->buf) == ')')
+ {
+ (state->buf)++;
+ state->count--;
+ return (state->count < 0) ? ERR : CLOSE;
+ }
+ else if (*(state->buf) == '\0')
+ return (state->count) ? ERR : END;
+ else if (*(state->buf) != ' ')
+ return ERR;
+ break;
+ default:
+ return ERR;
+ break;
+ }
+ (state->buf)++;
+ }
+ return END;
+}
+
+/*
+ * push new one in polish notation reverse view
+ */
+static void
+pushquery(QPRS_STATE * state, int4 type, int4 val, int4 distance, int4 lenval, uint16 flag)
+{
+ NODE *tmp = (NODE *) palloc(sizeof(NODE));
+
+ tmp->type = type;
+ tmp->val = val;
+ tmp->flag = flag;
+ if (distance > 0xffff)
+ elog(ERROR, "Value is too big");
+ if (lenval > 0xff)
+ elog(ERROR, "Operand is too long");
+ tmp->distance = distance;
+ tmp->length = lenval;
+ tmp->next = state->str;
+ state->str = tmp;
+ state->num++;
+}
+
+/*
+ * This function is used for query_txt parsing
+ */
+static void
+pushval_asis(QPRS_STATE * state, int type, char *strval, int lenval, uint16 flag)
+{
+ if (lenval > 0xffff)
+ elog(ERROR, "Word is too long");
+
+ pushquery(state, type, crc32_sz((uint8 *) strval, lenval),
+ state->curop - state->op, lenval, flag);
+
+ while (state->curop - state->op + lenval + 1 >= state->lenop)
+ {
+ int4 tmp = state->curop - state->op;
+
+ state->lenop *= 2;
+ state->op = (char *) repalloc((void *) state->op, state->lenop);
+ state->curop = state->op + tmp;
+ }
+ memcpy((void *) state->curop, (void *) strval, lenval);
+ state->curop += lenval;
+ *(state->curop) = '\0';
+ state->curop++;
+ state->sumlen += lenval + 1;
+ return;
+}
+
+#define STACKDEPTH 32
+/*
+ * make polish notaion of query
+ */
+static int4
+makepol(QPRS_STATE * state)
+{
+ int4 val,
+ type;
+ int4 lenval;
+ char *strval;
+ int4 stack[STACKDEPTH];
+ int4 lenstack = 0;
+ uint16 flag;
+
+ while ((type = gettoken_query(state, &val, &lenval, &strval,&flag)) != END) {
+ switch (type)
+ {
+ case VAL:
+ pushval_asis(state, VAL, strval, lenval,flag);
+ while (lenstack && (stack[lenstack - 1] == (int4) '&' ||
+ stack[lenstack - 1] == (int4) '!'))
+ {
+ lenstack--;
+ pushquery(state, OPR, stack[lenstack], 0, 0, 0);
+ }
+ break;
+ case OPR:
+ if (lenstack && val == (int4) '|')
+ pushquery(state, OPR, val, 0, 0, 0);
+ else
+ {
+ if (lenstack == STACKDEPTH)
+ elog(ERROR, "Stack too short");
+ stack[lenstack] = val;
+ lenstack++;
+ }
+ break;
+ case OPEN:
+ if (makepol(state) == ERR)
+ return ERR;
+ if (lenstack && (stack[lenstack - 1] == (int4) '&' ||
+ stack[lenstack - 1] == (int4) '!'))
+ {
+ lenstack--;
+ pushquery(state, OPR, stack[lenstack], 0, 0, 0);
+ }
+ break;
+ case CLOSE:
+ while (lenstack)
+ {
+ lenstack--;
+ pushquery(state, OPR, stack[lenstack], 0, 0, 0);
+ };
+ return END;
+ break;
+ case ERR:
+ default:
+ elog(ERROR, "Syntax error");
+ return ERR;
+
+ }
+ }
+ while (lenstack) {
+ lenstack--;
+ pushquery(state, OPR, stack[lenstack], 0, 0, 0);
+ };
+ return END;
+}
+
+static void
+findoprnd(ITEM * ptr, int4 *pos)
+{
+ if (ptr[*pos].type == VAL || ptr[*pos].type == VALTRUE)
+ {
+ ptr[*pos].left = 0;
+ (*pos)++;
+ }
+ else if (ptr[*pos].val == (int4) '!')
+ {
+ ptr[*pos].left = 1;
+ (*pos)++;
+ findoprnd(ptr, pos);
+ }
+ else
+ {
+ ITEM *curitem = &ptr[*pos];
+ int4 tmp = *pos;
+
+ (*pos)++;
+ findoprnd(ptr, pos);
+ curitem->left = *pos - tmp;
+ findoprnd(ptr, pos);
+ }
+}
+
+
+/*
+ * input
+ */
+static ltxtquery *
+queryin(char *buf)
+{
+ QPRS_STATE state;
+ int4 i;
+ ltxtquery *query;
+ int4 commonlen;
+ ITEM *ptr;
+ NODE *tmp;
+ int4 pos = 0;
+
+#ifdef BS_DEBUG
+ char pbuf[16384],
+ *cur;
+#endif
+
+ /* init state */
+ state.buf = buf;
+ state.state = WAITOPERAND;
+ state.count = 0;
+ state.num = 0;
+ state.str = NULL;
+
+ /* init list of operand */
+ state.sumlen = 0;
+ state.lenop = 64;
+ state.curop = state.op = (char *) palloc(state.lenop);
+ *(state.curop) = '\0';
+
+ /* parse query & make polish notation (postfix, but in reverse order) */
+ makepol(&state);
+ if (!state.num)
+ elog(ERROR, "Empty query");
+ /* make finish struct */
+ commonlen = COMPUTESIZE(state.num, state.sumlen);
+ query = (ltxtquery *) palloc(commonlen);
+ query->len = commonlen;
+ query->size = state.num;
+ ptr = GETQUERY(query);
+
+ /* set item in polish notation */
+ for (i = 0; i < state.num; i++)
+ {
+ ptr[i].type = state.str->type;
+ ptr[i].val = state.str->val;
+ ptr[i].distance = state.str->distance;
+ ptr[i].length = state.str->length;
+ ptr[i].flag = state.str->flag;
+ tmp = state.str->next;
+ pfree(state.str);
+ state.str = tmp;
+ }
+
+ /* set user friendly-operand view */
+ memcpy((void *) GETOPERAND(query), (void *) state.op, state.sumlen);
+ pfree(state.op);
+
+ /* set left operand's position for every operator */
+ pos = 0;
+ findoprnd(ptr, &pos);
+
+ return query;
+}
+
+/*
+ * in without morphology
+ */
+Datum
+ltxtq_in(PG_FUNCTION_ARGS)
+{
+ PG_RETURN_POINTER(queryin((char *) PG_GETARG_POINTER(0)));
+}
+
+/*
+ * out function
+ */
+typedef struct
+{
+ ITEM *curpol;
+ char *buf;
+ char *cur;
+ char *op;
+ int4 buflen;
+} INFIX;
+
+#define RESIZEBUF(inf,addsize) \
+while( ( inf->cur - inf->buf ) + addsize + 1 >= inf->buflen ) \
+{ \
+ int4 len = inf->cur - inf->buf; \
+ inf->buflen *= 2; \
+ inf->buf = (char*) repalloc( (void*)inf->buf, inf->buflen ); \
+ inf->cur = inf->buf + len; \
+}
+
+/*
+ * recursive walk on tree and print it in
+ * infix (human-readable) view
+ */
+static void
+infix(INFIX * in, bool first)
+{
+ if (in->curpol->type == VAL)
+ {
+ char *op = in->op + in->curpol->distance;
+
+ RESIZEBUF(in, in->curpol->length * 2 + 5);
+ while (*op) {
+ *(in->cur) = *op;
+ op++;
+ in->cur++;
+ }
+ if ( in->curpol->flag & LVAR_SUBLEXEM ) {
+ *(in->cur) = '%';
+ in->cur++;
+ }
+ if ( in->curpol->flag & LVAR_INCASE ) {
+ *(in->cur) = '@';
+ in->cur++;
+ }
+ if ( in->curpol->flag & LVAR_ANYEND ) {
+ *(in->cur) = '*';
+ in->cur++;
+ }
+ *(in->cur) = '\0';
+ in->curpol++;
+ }
+ else if (in->curpol->val == (int4) '!')
+ {
+ bool isopr = false;
+
+ RESIZEBUF(in, 1);
+ *(in->cur) = '!';
+ in->cur++;
+ *(in->cur) = '\0';
+ in->curpol++;
+ if (in->curpol->type == OPR)
+ {
+ isopr = true;
+ RESIZEBUF(in, 2);
+ sprintf(in->cur, "( ");
+ in->cur = strchr(in->cur, '\0');
+ }
+ infix(in, isopr);
+ if (isopr)
+ {
+ RESIZEBUF(in, 2);
+ sprintf(in->cur, " )");
+ in->cur = strchr(in->cur, '\0');
+ }
+ }
+ else
+ {
+ int4 op = in->curpol->val;
+ INFIX nrm;
+
+ in->curpol++;
+ if (op == (int4) '|' && !first)
+ {
+ RESIZEBUF(in, 2);
+ sprintf(in->cur, "( ");
+ in->cur = strchr(in->cur, '\0');
+ }
+
+ nrm.curpol = in->curpol;
+ nrm.op = in->op;
+ nrm.buflen = 16;
+ nrm.cur = nrm.buf = (char *) palloc(sizeof(char) * nrm.buflen);
+
+ /* get right operand */
+ infix(&nrm, false);
+
+ /* get & print left operand */
+ in->curpol = nrm.curpol;
+ infix(in, false);
+
+ /* print operator & right operand */
+ RESIZEBUF(in, 3 + (nrm.cur - nrm.buf));
+ sprintf(in->cur, " %c %s", op, nrm.buf);
+ in->cur = strchr(in->cur, '\0');
+ pfree(nrm.buf);
+
+ if (op == (int4) '|' && !first)
+ {
+ RESIZEBUF(in, 2);
+ sprintf(in->cur, " )");
+ in->cur = strchr(in->cur, '\0');
+ }
+ }
+}
+
+Datum
+ltxtq_out(PG_FUNCTION_ARGS)
+{
+ ltxtquery *query = PG_GETARG_LTXTQUERY(0);
+ INFIX nrm;
+
+ if (query->size == 0)
+ elog(ERROR, "Empty");
+ nrm.curpol = GETQUERY(query);
+ nrm.buflen = 32;
+ nrm.cur = nrm.buf = (char *) palloc(sizeof(char) * nrm.buflen);
+ *(nrm.cur) = '\0';
+ nrm.op = GETOPERAND(query);
+ infix(&nrm, true);
+
+ PG_FREE_IF_COPY(query, 0);
+ PG_RETURN_POINTER(nrm.buf);
+}
+
diff --git a/contrib/ltree/ltxtquery_op.c b/contrib/ltree/ltxtquery_op.c
new file mode 100644
index 00000000000..d5674427e6e
--- /dev/null
+++ b/contrib/ltree/ltxtquery_op.c
@@ -0,0 +1,99 @@
+/*
+ * txtquery operations with ltree
+ * Teodor Sigaev <teodor@stack.net>
+ */
+
+#include "ltree.h"
+#include <ctype.h>
+
+PG_FUNCTION_INFO_V1(ltxtq_exec);
+PG_FUNCTION_INFO_V1(ltxtq_rexec);
+
+/*
+ * check for boolean condition
+ */
+bool
+execute(ITEM * curitem, void *checkval, bool calcnot, bool (*chkcond) (void *checkval, ITEM * val)) {
+ if (curitem->type == VAL)
+ return (*chkcond) (checkval, curitem);
+ else if (curitem->val == (int4) '!') {
+ return (calcnot) ?
+ ((execute(curitem + 1, checkval, calcnot, chkcond)) ? false : true)
+ : true;
+ } else if (curitem->val == (int4) '&') {
+ if (execute(curitem + curitem->left, checkval, calcnot, chkcond))
+ return execute(curitem + 1, checkval, calcnot, chkcond);
+ else
+ return false;
+ } else { /* |-operator */
+ if (execute(curitem + curitem->left, checkval, calcnot, chkcond))
+ return true;
+ else
+ return execute(curitem + 1, checkval, calcnot, chkcond);
+ }
+ return false;
+}
+
+typedef struct {
+ ltree *node;
+ char *operand;
+} CHKVAL;
+
+static bool
+checkcondition_str(void* checkval, ITEM * val) {
+ ltree_level *level = LTREE_FIRST( ((CHKVAL*)checkval)->node );
+ int tlen = ((CHKVAL*)checkval)->node->numlevel;
+ char *op = ((CHKVAL*)checkval)->operand + val->distance;
+ int (*cmpptr)(const char *,const char *,size_t);
+
+ cmpptr = ( val->flag & LVAR_INCASE ) ? strncasecmp : strncmp;
+ while( tlen > 0 ) {
+ if ( val->flag & LVAR_SUBLEXEM ) {
+ if ( compare_subnode(level, op, val->length, cmpptr, (val->flag & LVAR_ANYEND) ) )
+ return true;
+ } else if (
+ (
+ val->length == level->len ||
+ ( level->len > val->length && (val->flag & LVAR_ANYEND) )
+ ) &&
+ (*cmpptr)( op, level->name, val->length) == 0 )
+ return true;
+
+ tlen--;
+ level = LEVEL_NEXT(level);
+ }
+
+ return false;
+}
+
+Datum
+ltxtq_exec(PG_FUNCTION_ARGS) {
+ ltree *val = PG_GETARG_LTREE(0);
+ ltxtquery *query = PG_GETARG_LTXTQUERY(1);
+ CHKVAL chkval;
+ bool result;
+
+ chkval.node = val;
+ chkval.operand = GETOPERAND(query);
+
+ result = execute(
+ GETQUERY(query),
+ &chkval,
+ true,
+ checkcondition_str
+ );
+
+ PG_FREE_IF_COPY(val, 0);
+ PG_FREE_IF_COPY(query, 1);
+ PG_RETURN_BOOL(result);
+}
+
+Datum
+ltxtq_rexec(PG_FUNCTION_ARGS) {
+ PG_RETURN_DATUM( DirectFunctionCall2( ltxtq_exec,
+ PG_GETARG_DATUM(1),
+ PG_GETARG_DATUM(0)
+ ) );
+}
+
+
diff --git a/contrib/ltree/patch.72 b/contrib/ltree/patch.72
new file mode 100644
index 00000000000..a03cd2f8c7b
--- /dev/null
+++ b/contrib/ltree/patch.72
@@ -0,0 +1,71 @@
+*** ltree.sql.in Tue Jul 23 18:49:12 2002
+--- ltree.sql.in.72 Wed Jul 17 18:59:08 2002
+***************
+*** 177,188 ****
+
+
+ -- B-tree support
+! INSERT INTO pg_opclass (opcamid, opcname, opcnamespace, opcowner, opcintype, opcdefault, opckeytype)
+ VALUES (
+ (SELECT oid FROM pg_am WHERE amname = 'btree'),
+ 'ltree_ops',
+- (SELECT oid FROM pg_namespace WHERE nspname = 'pg_catalog'),
+- 1, -- UID of superuser is hardwired to 1 as of PG 7.3
+ (SELECT oid FROM pg_type WHERE typname = 'ltree'),
+ true,
+ 0);
+--- 177,186 ----
+
+
+ -- B-tree support
+! INSERT INTO pg_opclass (opcamid, opcname, opcintype, opcdefault, opckeytype)
+ VALUES (
+ (SELECT oid FROM pg_am WHERE amname = 'btree'),
+ 'ltree_ops',
+ (SELECT oid FROM pg_type WHERE typname = 'ltree'),
+ true,
+ 0);
+***************
+*** 376,386 ****
+ create function ltree_union(bytea, opaque) returns int4 as 'MODULE_PATHNAME' language 'C';
+ create function ltree_same(opaque, opaque, opaque) returns opaque as 'MODULE_PATHNAME' language 'C';
+
+! INSERT INTO pg_opclass (opcamid, opcname, opcnamespace, opcowner, opcintype, opckeytype, opcdefault)
+! SELECT pg_am.oid, 'gist_ltree_ops',
+! (SELECT oid FROM pg_namespace WHERE nspname = 'pg_catalog'),
+! 1, -- UID of superuser is hardwired to 1 as of PG 7.3
+! pg_type.oid, pg_key.oid, true
+ FROM pg_type, pg_am, pg_type pg_key
+ WHERE pg_type.typname = 'ltree' and
+ pg_am.amname='gist' and
+--- 374,381 ----
+ create function ltree_union(bytea, opaque) returns int4 as 'MODULE_PATHNAME' language 'C';
+ create function ltree_same(opaque, opaque, opaque) returns opaque as 'MODULE_PATHNAME' language 'C';
+
+! INSERT INTO pg_opclass (opcamid, opcname, opcintype, opckeytype, opcdefault)
+! SELECT pg_am.oid, 'gist_ltree_ops', pg_type.oid, pg_key.oid, true
+ FROM pg_type, pg_am, pg_type pg_key
+ WHERE pg_type.typname = 'ltree' and
+ pg_am.amname='gist' and
+***************
+*** 720,730 ****
+ create function _ltree_union(bytea, opaque) returns int4 as 'MODULE_PATHNAME' language 'C';
+ create function _ltree_same(opaque, opaque, opaque) returns opaque as 'MODULE_PATHNAME' language 'C';
+
+! INSERT INTO pg_opclass (opcamid, opcname, opcnamespace, opcowner, opcintype, opckeytype, opcdefault)
+! SELECT pg_am.oid, 'gist__ltree_ops',
+! (SELECT oid FROM pg_namespace WHERE nspname = 'pg_catalog'),
+! 1, -- UID of superuser is hardwired to 1 as of PG 7.3
+! pg_type.oid, pg_key.oid, true
+ FROM pg_type, pg_am, pg_type pg_key
+ WHERE pg_type.typname = '_ltree' and
+ pg_am.amname='gist' and
+--- 715,722 ----
+ create function _ltree_union(bytea, opaque) returns int4 as 'MODULE_PATHNAME' language 'C';
+ create function _ltree_same(opaque, opaque, opaque) returns opaque as 'MODULE_PATHNAME' language 'C';
+
+! INSERT INTO pg_opclass (opcamid, opcname, opcintype, opckeytype, opcdefault)
+! SELECT pg_am.oid, 'gist__ltree_ops', pg_type.oid, pg_key.oid, true
+ FROM pg_type, pg_am, pg_type pg_key
+ WHERE pg_type.typname = '_ltree' and
+ pg_am.amname='gist' and
diff --git a/contrib/ltree/sql/ltree.sql b/contrib/ltree/sql/ltree.sql
new file mode 100644
index 00000000000..4a4cf28c714
--- /dev/null
+++ b/contrib/ltree/sql/ltree.sql
@@ -0,0 +1,238 @@
+\set ECHO none
+\i ltree.sql
+\set ECHO all
+
+select ''::ltree;
+select '1'::ltree;
+select '1.2'::ltree;
+select '1.2._3'::ltree;
+
+select subltree('Top.Child1.Child2',1,2);
+select subpath('Top.Child1.Child2',1,2);
+select subpath('Top.Child1.Child2',-1,1);
+select subpath('Top.Child1.Child2',0,-2);
+select subpath('Top.Child1.Child2',0,-1);
+select subpath('Top.Child1.Child2',0,0);
+select subpath('Top.Child1.Child2',1,0);
+select subpath('Top.Child1.Child2',0);
+select subpath('Top.Child1.Child2',1);
+
+select 'Top.Child1.Child2'::ltree || 'Child3'::text;
+select 'Top.Child1.Child2'::ltree || 'Child3'::ltree;
+select 'Top_0'::ltree || 'Top.Child1.Child2'::ltree;
+select 'Top.Child1.Child2'::ltree || ''::ltree;
+select ''::ltree || 'Top.Child1.Child2'::ltree;
+
+select '1'::lquery;
+select '4|3|2'::lquery;
+select '1.2'::lquery;
+select '1.4|3|2'::lquery;
+select '1.0'::lquery;
+select '4|3|2.0'::lquery;
+select '1.2.0'::lquery;
+select '1.4|3|2.0'::lquery;
+select '1.*'::lquery;
+select '4|3|2.*'::lquery;
+select '1.2.*'::lquery;
+select '1.4|3|2.*'::lquery;
+select '*.1.*'::lquery;
+select '*.4|3|2.*'::lquery;
+select '*.1.2.*'::lquery;
+select '*.1.4|3|2.*'::lquery;
+select '1.*.4|3|2'::lquery;
+select '1.*.4|3|2.0'::lquery;
+select '1.*.4|3|2.*{1,4}'::lquery;
+select '1.*.4|3|2.*{,4}'::lquery;
+select '1.*.4|3|2.*{1,}'::lquery;
+select '1.*.4|3|2.*{1}'::lquery;
+select 'qwerty%@*.tu'::lquery;
+
+select nlevel('1.2.3.4');
+select '1.2'::ltree < '2.2'::ltree;
+select '1.2'::ltree <= '2.2'::ltree;
+select '2.2'::ltree = '2.2'::ltree;
+select '3.2'::ltree >= '2.2'::ltree;
+select '3.2'::ltree > '2.2'::ltree;
+
+select '1.2.3'::ltree @> '1.2.3.4'::ltree;
+select '1.2.3.4'::ltree @> '1.2.3.4'::ltree;
+select '1.2.3.4.5'::ltree @> '1.2.3.4'::ltree;
+select '1.3.3'::ltree @> '1.2.3.4'::ltree;
+
+select 'a.b.c.d.e'::ltree ~ 'a.b.c.d.e';
+select 'a.b.c.d.e'::ltree ~ 'A.b.c.d.e';
+select 'a.b.c.d.e'::ltree ~ 'A@.b.c.d.e';
+select 'aa.b.c.d.e'::ltree ~ 'A@.b.c.d.e';
+select 'aa.b.c.d.e'::ltree ~ 'A*.b.c.d.e';
+select 'aa.b.c.d.e'::ltree ~ 'A*@.b.c.d.e';
+select 'aa.b.c.d.e'::ltree ~ 'A*@|g.b.c.d.e';
+select 'g.b.c.d.e'::ltree ~ 'A*@|g.b.c.d.e';
+select 'a.b.c.d.e'::ltree ~ 'a.b.c.d.e';
+select 'a.b.c.d.e'::ltree ~ 'a.*.e';
+select 'a.b.c.d.e'::ltree ~ 'a.*{3}.e';
+select 'a.b.c.d.e'::ltree ~ 'a.*{2}.e';
+select 'a.b.c.d.e'::ltree ~ 'a.*{4}.e';
+select 'a.b.c.d.e'::ltree ~ 'a.*{,4}.e';
+select 'a.b.c.d.e'::ltree ~ 'a.*{2,}.e';
+select 'a.b.c.d.e'::ltree ~ 'a.*{2,4}.e';
+select 'a.b.c.d.e'::ltree ~ 'a.*{2,3}.e';
+select 'a.b.c.d.e'::ltree ~ 'a.*{2,3}';
+select 'a.b.c.d.e'::ltree ~ 'a.*{2,4}';
+select 'a.b.c.d.e'::ltree ~ 'a.*{2,5}';
+select 'a.b.c.d.e'::ltree ~ '*{2,3}.e';
+select 'a.b.c.d.e'::ltree ~ '*{2,4}.e';
+select 'a.b.c.d.e'::ltree ~ '*{2,5}.e';
+select 'a.b.c.d.e'::ltree ~ '*.e';
+select 'a.b.c.d.e'::ltree ~ '*.e.*';
+select 'a.b.c.d.e'::ltree ~ '*.d.*';
+select 'a.b.c.d.e'::ltree ~ '*.a.*.d.*';
+select 'a.b.c.d.e'::ltree ~ '*.!d.*';
+select 'a.b.c.d.e'::ltree ~ '*.!d';
+select 'a.b.c.d.e'::ltree ~ '!d.*';
+select 'a.b.c.d.e'::ltree ~ '!a.*';
+select 'a.b.c.d.e'::ltree ~ '*.!e';
+select 'a.b.c.d.e'::ltree ~ '*.!e.*';
+select 'a.b.c.d.e'::ltree ~ 'a.*.!e';
+select 'a.b.c.d.e'::ltree ~ 'a.*.!d';
+select 'a.b.c.d.e'::ltree ~ 'a.*.!d.*';
+select 'a.b.c.d.e'::ltree ~ 'a.*.!f.*';
+select 'a.b.c.d.e'::ltree ~ '*.a.*.!f.*';
+select 'a.b.c.d.e'::ltree ~ '*.a.*.!d.*';
+select 'a.b.c.d.e'::ltree ~ '*.a.!d.*';
+select 'a.b.c.d.e'::ltree ~ '*.a.!d';
+select 'a.b.c.d.e'::ltree ~ 'a.!d.*';
+select 'a.b.c.d.e'::ltree ~ '*.a.*.!d.*';
+select 'a.b.c.d.e'::ltree ~ '*.!b.*';
+select 'a.b.c.d.e'::ltree ~ '*.!b.c.*';
+select 'a.b.c.d.e'::ltree ~ '*.!b.*.c.*';
+select 'a.b.c.d.e'::ltree ~ '!b.*.c.*';
+select 'a.b.c.d.e'::ltree ~ '!b.b.*';
+select 'a.b.c.d.e'::ltree ~ '!b.*.e';
+select 'a.b.c.d.e'::ltree ~ '!b.!c.*.e';
+select 'a.b.c.d.e'::ltree ~ '!b.*.!c.*.e';
+select 'a.b.c.d.e'::ltree ~ '*{2}.!b.*.!c.*.e';
+select 'a.b.c.d.e'::ltree ~ '*{1}.!b.*.!c.*.e';
+select 'a.b.c.d.e'::ltree ~ '*{1}.!b.*{1}.!c.*.e';
+select 'a.b.c.d.e'::ltree ~ 'a.!b.*{1}.!c.*.e';
+select 'a.b.c.d.e'::ltree ~ '!b.*{1}.!c.*.e';
+select 'a.b.c.d.e'::ltree ~ '*.!b.*{1}.!c.*.e';
+select 'a.b.c.d.e'::ltree ~ '*.!b.*.!c.*.e';
+select 'a.b.c.d.e'::ltree ~ '!b.!c.*';
+select 'a.b.c.d.e'::ltree ~ '!b.*.!c.*';
+select 'a.b.c.d.e'::ltree ~ '*{2}.!b.*.!c.*';
+select 'a.b.c.d.e'::ltree ~ '*{1}.!b.*.!c.*';
+select 'a.b.c.d.e'::ltree ~ '*{1}.!b.*{1}.!c.*';
+select 'a.b.c.d.e'::ltree ~ 'a.!b.*{1}.!c.*';
+select 'a.b.c.d.e'::ltree ~ '!b.*{1}.!c.*';
+select 'a.b.c.d.e'::ltree ~ '*.!b.*{1}.!c.*';
+select 'a.b.c.d.e'::ltree ~ '*.!b.*.!c.*';
+
+select 'QWER_TY'::ltree ~ 'q%@*';
+select 'QWER_TY'::ltree ~ 'Q_t%@*';
+select 'QWER_GY'::ltree ~ 'q_t%@*';
+
+--ltxtquery
+select '!tree & aWdf@*'::ltxtquery;
+select 'tree & aw_qw%*'::ltxtquery;
+select 'ltree.awdfg'::ltree @ '!tree & aWdf@*'::ltxtquery;
+select 'tree.awdfg'::ltree @ '!tree & aWdf@*'::ltxtquery;
+select 'tree.awdfg'::ltree @ '!tree | aWdf@*'::ltxtquery;
+select 'tree.awdfg'::ltree @ 'tree | aWdf@*'::ltxtquery;
+select 'tree.awdfg'::ltree @ 'tree & aWdf@*'::ltxtquery;
+select 'tree.awdfg'::ltree @ 'tree & aWdf@'::ltxtquery;
+select 'tree.awdfg'::ltree @ 'tree & aWdf*'::ltxtquery;
+select 'tree.awdfg'::ltree @ 'tree & aWdf'::ltxtquery;
+select 'tree.awdfg'::ltree @ 'tree & awdf*'::ltxtquery;
+select 'tree.awdfg'::ltree @ 'tree & aWdfg@'::ltxtquery;
+select 'tree.awdfg_qwerty'::ltree @ 'tree & aw_qw%*'::ltxtquery;
+select 'tree.awdfg_qwerty'::ltree @ 'tree & aw_rw%*'::ltxtquery;
+
+--arrays
+
+select '{1.2.3}'::ltree[] @> '1.2.3.4';
+select '{1.2.3.4}'::ltree[] @> '1.2.3.4';
+select '{1.2.3.4.5}'::ltree[] @> '1.2.3.4';
+select '{1.3.3}'::ltree[] @> '1.2.3.4';
+select '{5.67.8, 1.2.3}'::ltree[] @> '1.2.3.4';
+select '{5.67.8, 1.2.3.4}'::ltree[] @> '1.2.3.4';
+select '{5.67.8, 1.2.3.4.5}'::ltree[] @> '1.2.3.4';
+select '{5.67.8, 1.3.3}'::ltree[] @> '1.2.3.4';
+select '{1.2.3, 7.12.asd}'::ltree[] @> '1.2.3.4';
+select '{1.2.3.4, 7.12.asd}'::ltree[] @> '1.2.3.4';
+select '{1.2.3.4.5, 7.12.asd}'::ltree[] @> '1.2.3.4';
+select '{1.3.3, 7.12.asd}'::ltree[] @> '1.2.3.4';
+select '{ltree.asd, tree.awdfg}'::ltree[] @ 'tree & aWdfg@'::ltxtquery;
+select '{j.k.l.m, g.b.c.d.e}'::ltree[] ~ 'A*@|g.b.c.d.e';
+
+--exractors
+select ('{3456,1.2.3.34}'::ltree[] ?@> '1.2.3.4') is null;
+select '{3456,1.2.3}'::ltree[] ?@> '1.2.3.4';
+select '{3456,1.2.3.4}'::ltree[] ?<@ '1.2.3';
+select ('{3456,1.2.3.4}'::ltree[] ?<@ '1.2.5') is null;
+select '{ltree.asd, tree.awdfg}'::ltree[] ?@ 'tree & aWdfg@'::ltxtquery;
+select '{j.k.l.m, g.b.c.d.e}'::ltree[] ?~ 'A*@|g.b.c.d.e';
+
+create table ltreetest (t ltree);
+\copy ltreetest from 'data/ltree.data'
+
+select * from ltreetest where t < '12.3' order by t asc;
+select * from ltreetest where t <= '12.3' order by t asc;
+select * from ltreetest where t = '12.3' order by t asc;
+select * from ltreetest where t >= '12.3' order by t asc;
+select * from ltreetest where t > '12.3' order by t asc;
+select * from ltreetest where t @> '1.1.1' order by t asc;
+select * from ltreetest where t <@ '1.1.1' order by t asc;
+select * from ltreetest where t ~ '1.1.1.*' order by t asc;
+select * from ltreetest where t ~ '*.1' order by t asc;
+select * from ltreetest where t ~ '23.*.1' order by t asc;
+select * from ltreetest where t ~ '23.*{1}.1' order by t asc;
+select * from ltreetest where t @ '23 & 1' order by t asc;
+
+create unique index tstidx on ltreetest (t);
+set enable_seqscan=off;
+
+select * from ltreetest where t < '12.3' order by t asc;
+select * from ltreetest where t <= '12.3' order by t asc;
+select * from ltreetest where t = '12.3' order by t asc;
+select * from ltreetest where t >= '12.3' order by t asc;
+select * from ltreetest where t > '12.3' order by t asc;
+
+drop index tstidx;
+create index tstidx on ltreetest using gist (t);
+set enable_seqscan=off;
+
+select * from ltreetest where t < '12.3' order by t asc;
+select * from ltreetest where t <= '12.3' order by t asc;
+select * from ltreetest where t = '12.3' order by t asc;
+select * from ltreetest where t >= '12.3' order by t asc;
+select * from ltreetest where t > '12.3' order by t asc;
+select * from ltreetest where t @> '1.1.1' order by t asc;
+select * from ltreetest where t <@ '1.1.1' order by t asc;
+select * from ltreetest where t ~ '1.1.1.*' order by t asc;
+select * from ltreetest where t ~ '*.1' order by t asc;
+select * from ltreetest where t ~ '23.*.1' order by t asc;
+select * from ltreetest where t ~ '23.*{1}.1' order by t asc;
+select * from ltreetest where t @ '23 & 1' order by t asc;
+
+create table _ltreetest (t ltree[]);
+\copy _ltreetest from 'data/_ltree.data'
+
+select count(*) from _ltreetest where t @> '1.1.1' ;
+select count(*) from _ltreetest where t <@ '1.1.1' ;
+select count(*) from _ltreetest where t ~ '1.1.1.*' ;
+select count(*) from _ltreetest where t ~ '*.1' ;
+select count(*) from _ltreetest where t ~ '23.*.1' ;
+select count(*) from _ltreetest where t ~ '23.*{1}.1' ;
+select count(*) from _ltreetest where t @ '23 & 1' ;
+
+create index _tstidx on _ltreetest using gist (t);
+set enable_seqscan=off;
+
+select count(*) from _ltreetest where t @> '1.1.1' ;
+select count(*) from _ltreetest where t <@ '1.1.1' ;
+select count(*) from _ltreetest where t ~ '1.1.1.*' ;
+select count(*) from _ltreetest where t ~ '*.1' ;
+select count(*) from _ltreetest where t ~ '23.*.1' ;
+select count(*) from _ltreetest where t ~ '23.*{1}.1' ;
+select count(*) from _ltreetest where t @ '23 & 1' ;
+