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please find attached patch to current CVS ( contrib/ltree )

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Changes:

July 31, 2002
   Now works on 64-bit platforms.
   Added function lca - lowest common ancestor
   Version for 7.2 is distributed as separate package -
   http://www.sai.msu.su/~megera/postgres/gist/ltree/ltree-7.2.tar.gz

Oleg Bartunov
This commit is contained in:
Bruce Momjian
2002-08-04 05:02:50 +00:00
parent 6495f4e52f
commit 978c8c6d2f
6 changed files with 199 additions and 38 deletions
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33
contrib/ltree/ltree.h
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@ -12,7 +12,7 @@ typedef struct {
} ltree_level;
#define LEVEL_HDRSIZE (sizeof(uint8))
#define LEVEL_NEXT(x) ( (ltree_level*)( ((char*)(x)) + ((ltree_level*)(x))->len + LEVEL_HDRSIZE ) )
#define LEVEL_NEXT(x) ( (ltree_level*)( ((char*)(x)) + MAXALIGN(((ltree_level*)(x))->len + LEVEL_HDRSIZE) ) )
typedef struct {
int32 len;
@ -20,8 +20,8 @@ typedef struct {
char data[1];
} ltree;
#define LTREE_HDRSIZE ( sizeof(int32) + sizeof(uint16) )
#define LTREE_FIRST(x) ( (ltree_level*)( ((ltree*)(x))->data ) )
#define LTREE_HDRSIZE MAXALIGN( sizeof(int32) + sizeof(uint16) )
#define LTREE_FIRST(x) ( (ltree_level*)( ((char*)(x))+LTREE_HDRSIZE ) )
/* lquery */
@ -33,8 +33,8 @@ typedef struct {
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_HDRSIZE MAXALIGN(sizeof(uint8)*2 + sizeof(int4))
#define LVAR_NEXT(x) ( (lquery_variant*)( ((char*)(x)) + MAXALIGN(((lquery_variant*)(x))->len) + LVAR_HDRSIZE ) )
#define LVAR_ANYEND 0x01
#define LVAR_INCASE 0x02
@ -49,9 +49,9 @@ typedef struct {
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_HDRSIZE MAXALIGN( sizeof(uint16)*5 )
#define LQL_NEXT(x) ( (lquery_level*)( ((char*)(x)) + MAXALIGN(((lquery_level*)(x))->totallen) ) )
#define LQL_FIRST(x) ( (lquery_variant*)( ((char*)(x))+LQL_HDRSIZE ) )
#define LQL_NOT 0x10
#ifdef LOWER_NODE
@ -69,8 +69,8 @@ typedef struct {
char data[1];
} lquery;
#define LQUERY_HDRSIZE ( sizeof(int32) + 3*sizeof(uint16) )
#define LQUERY_FIRST(x) ( (lquery_level*)( ((lquery*)(x))->data ) )
#define LQUERY_HDRSIZE MAXALIGN( sizeof(int32) + 3*sizeof(uint16) )
#define LQUERY_FIRST(x) ( (lquery_level*)( ((char*)(x))+LQUERY_HDRSIZE ) )
#define LQUERY_HASNOT 0x01
@ -113,7 +113,7 @@ typedef struct
char data[1];
} ltxtquery;
#define HDRSIZEQT ( 2*sizeof(int4) )
#define HDRSIZEQT MAXALIGN( 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) )
@ -159,6 +159,7 @@ 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 );
ltree* lca_inner(ltree** a, int len);
#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))))
@ -212,14 +213,14 @@ typedef struct {
#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_HDRSIZE MAXALIGN( sizeof(int4) + sizeof(uint32) )
#define LTG_SIGN(x) ( (BITVECP)( ((char*)(x))+LTG_HDRSIZE ) )
#define LTG_NODE(x) ( (ltree*)( ((char*)(x))+LTG_HDRSIZE ) )
#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_LNODE(x) ( (ltree*)( ( ((char*)(x))+LTG_HDRSIZE ) + ( 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) )