database/postgres
database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-06-03 01:21:48 +03:00
Code

Please apply patches for contrib/ltree.

Browse Source 
ltree_73.patch.gz - for 7.3 :
        Fix ~ operation bug: eg '1.1.1' ~ '*.1'

ltree_74.patch.gz - for current CVS
    Fix ~ operation bug: eg '1.1.1' ~ '*.1'
    Add ? operation
    Optimize index storage

Last change needs drop/create all ltree indexes, so only for 7.4

Teodor Sigaev
This commit is contained in:
Bruce Momjian 2003-02-19 03:50:49 +00:00
parent c89000f346
commit 00cb9384a1
3 changed files with 57 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
contrib/ltree/README.ltree
View File

@ -426,6 +426,8 @@ appreciate your input. So far, below some (rather obvious) results:
CHANGES
Feb 7, 2003
Fix ~ operation bug: eg '1.1.1' ~ '*.1'
Aug 9, 2002
Fixed very stupid but important bug :-)
July 31, 2002

44
contrib/ltree/expected/ltree.out
View File

@ -3071,9 +3071,17 @@ SELECT * FROM ltreetest WHERE t ~ '*.1' order by t asc;
t
--------------------------------
1
1.1
1.1.1
1.1.1.1
1.1.1.2.1
1.1.2.1
1.26.15.23.5.31.29.11.19.28.1
10.13.22.1.8.30.9.24.1.2.1
10.22.1
10.26.30.15.1
11.1
12.1.1
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
@ -3083,6 +3091,7 @@ SELECT * FROM ltreetest WHERE t ~ '*.1' order by t asc;
21.18.2.1
21.23.17.8.23.11.8.1
22.30.31.24.23.22.5.20.28.1
23.17.22.1.23.4.29.32.4.1
23.28.1
23.3.32.21.5.14.10.17.1
25.6.12.16.1
@ -3095,14 +3104,15 @@ SELECT * FROM ltreetest WHERE t ~ '*.1' order by t asc;
8.2.18.23.5.16.17.1
8.32.30.1
9.21.20.29.1
(25 rows)
(34 rows)
SELECT * FROM ltreetest WHERE t ~ '23.*.1' order by t asc;
t
-------------------------
t
---------------------------
23.17.22.1.23.4.29.32.4.1
23.28.1
23.3.32.21.5.14.10.17.1
(2 rows)
(3 rows)
SELECT * FROM ltreetest WHERE t ~ '23.*{1}.1' order by t asc;
t
@ -7266,9 +7276,17 @@ SELECT * FROM ltreetest WHERE t ~ '*.1' order by t asc;
t
--------------------------------
1
1.1
1.1.1
1.1.1.1
1.1.1.2.1
1.1.2.1
1.26.15.23.5.31.29.11.19.28.1
10.13.22.1.8.30.9.24.1.2.1
10.22.1
10.26.30.15.1
11.1
12.1.1
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
@ -7278,6 +7296,7 @@ SELECT * FROM ltreetest WHERE t ~ '*.1' order by t asc;
21.18.2.1
21.23.17.8.23.11.8.1
22.30.31.24.23.22.5.20.28.1
23.17.22.1.23.4.29.32.4.1
23.28.1
23.3.32.21.5.14.10.17.1
25.6.12.16.1
@ -7290,14 +7309,15 @@ SELECT * FROM ltreetest WHERE t ~ '*.1' order by t asc;
8.2.18.23.5.16.17.1
8.32.30.1
9.21.20.29.1
(25 rows)
(34 rows)
SELECT * FROM ltreetest WHERE t ~ '23.*.1' order by t asc;
t
-------------------------
t
---------------------------
23.17.22.1.23.4.29.32.4.1
23.28.1
23.3.32.21.5.14.10.17.1
(2 rows)
(3 rows)
SELECT * FROM ltreetest WHERE t ~ '23.*{1}.1' order by t asc;
t
@ -7372,13 +7392,13 @@ SELECT count(*) FROM _ltreetest WHERE t ~ '1.1.1.*' ;
SELECT count(*) FROM _ltreetest WHERE t ~ '*.1' ;
count
-------
83
109
(1 row)
SELECT count(*) FROM _ltreetest WHERE t ~ '23.*.1' ;
count
-------
10
11
(1 row)
SELECT count(*) FROM _ltreetest WHERE t ~ '23.*{1}.1' ;
@ -7416,13 +7436,13 @@ SELECT count(*) FROM _ltreetest WHERE t ~ '1.1.1.*' ;
SELECT count(*) FROM _ltreetest WHERE t ~ '*.1' ;
count
-------
83
109
(1 row)
SELECT count(*) FROM _ltreetest WHERE t ~ '23.*.1' ;
count
-------
10
11
(1 row)
SELECT count(*) FROM _ltreetest WHERE t ~ '23.*{1}.1' ;

24
contrib/ltree/lquery_op.c
View File

@ -39,7 +39,7 @@ getlexem(char *start, char *end, int *len)
}
bool
compare_subnode(ltree_level * t, char *qn, int len, int (*cmpptr) (const char *, const char *, size_t), bool anyend)
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;
@ -117,6 +117,11 @@ printFieldNot(FieldNot *fn ) {
}
*/
static struct {
bool muse;
uint32 high_pos;
} SomeStack = {false,0,};
static bool
checkCond(lquery_level * curq, int query_numlevel, ltree_level * curt, int tree_numlevel, FieldNot * ptr)
{
@ -129,6 +134,14 @@ checkCond(lquery_level * curq, int query_numlevel, ltree_level * curt, int tree_
lquery_level *prevq = NULL;
ltree_level *prevt = NULL;
if ( SomeStack.muse ) {
high_pos = SomeStack.high_pos;
qlen--;
prevq = curq;
curq = LQL_NEXT(curq);
SomeStack.muse = false;
}
while (tlen > 0 && qlen > 0)
{
if (curq->numvar)
@ -181,6 +194,15 @@ checkCond(lquery_level * curq, int query_numlevel, ltree_level * curt, int tree_
curt = LEVEL_NEXT(curt);
tlen--;
cur_tpos++;
if ( isok && prevq && prevq->numvar==0 && tlen>0 && cur_tpos <= high_pos ) {
FieldNot tmpptr;
if ( ptr )
memcpy(&tmpptr,ptr,sizeof(FieldNot));
SomeStack.high_pos = high_pos-cur_tpos;
SomeStack.muse = true;
if ( checkCond(prevq, qlen+1, curt, tlen, (ptr) ? &tmpptr : NULL) )
return true;
}
if (!isok && ptr)
ptr->nt++;
}