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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:19:15 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:19:15 +0000 |
commit | 6eb9c5a5657d1fe77b55cc261450f3538d35a94d (patch) | |
tree | 657d8194422a5daccecfd42d654b8a245ef7b4c8 /contrib/btree_gist/btree_utils_var.h | |
parent | Initial commit. (diff) | |
download | postgresql-13-6eb9c5a5657d1fe77b55cc261450f3538d35a94d.tar.xz postgresql-13-6eb9c5a5657d1fe77b55cc261450f3538d35a94d.zip |
Adding upstream version 13.4.upstream/13.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'contrib/btree_gist/btree_utils_var.h')
-rw-r--r-- | contrib/btree_gist/btree_utils_var.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/contrib/btree_gist/btree_utils_var.h b/contrib/btree_gist/btree_utils_var.h new file mode 100644 index 0000000..2f8def6 --- /dev/null +++ b/contrib/btree_gist/btree_utils_var.h @@ -0,0 +1,72 @@ +/* + * contrib/btree_gist/btree_utils_var.h + */ +#ifndef __BTREE_UTILS_VAR_H__ +#define __BTREE_UTILS_VAR_H__ + +#include "access/gist.h" +#include "btree_gist.h" +#include "mb/pg_wchar.h" + +/* Variable length key */ +typedef bytea GBT_VARKEY; + +/* Better readable key */ +typedef struct +{ + bytea *lower, + *upper; +} GBT_VARKEY_R; + +/* + * type description + */ +typedef struct +{ + + /* Attribs */ + + enum gbtree_type t; /* data type */ + int32 eml; /* cached pg_database_encoding_max_length (0: + * undefined) */ + bool trnc; /* truncate (=compress) key */ + + /* Methods */ + + bool (*f_gt) (const void *, const void *, Oid, FmgrInfo *); /* greater than */ + bool (*f_ge) (const void *, const void *, Oid, FmgrInfo *); /* greater equal */ + bool (*f_eq) (const void *, const void *, Oid, FmgrInfo *); /* equal */ + bool (*f_le) (const void *, const void *, Oid, FmgrInfo *); /* less equal */ + bool (*f_lt) (const void *, const void *, Oid, FmgrInfo *); /* less than */ + int32 (*f_cmp) (const void *, const void *, Oid, FmgrInfo *); /* compare */ + GBT_VARKEY *(*f_l2n) (GBT_VARKEY *, FmgrInfo *flinfo); /* convert leaf to node */ +} gbtree_vinfo; + + + +extern GBT_VARKEY_R gbt_var_key_readable(const GBT_VARKEY *k); + +extern GBT_VARKEY *gbt_var_key_copy(const GBT_VARKEY_R *u); + +extern GISTENTRY *gbt_var_compress(GISTENTRY *entry, const gbtree_vinfo *tinfo); + +extern GBT_VARKEY *gbt_var_union(const GistEntryVector *entryvec, int32 *size, + Oid collation, const gbtree_vinfo *tinfo, FmgrInfo *flinfo); + +extern bool gbt_var_same(Datum d1, Datum d2, Oid collation, + const gbtree_vinfo *tinfo, FmgrInfo *flinfo); + +extern float *gbt_var_penalty(float *res, const GISTENTRY *o, const GISTENTRY *n, + Oid collation, const gbtree_vinfo *tinfo, FmgrInfo *flinfo); + +extern bool gbt_var_consistent(GBT_VARKEY_R *key, const void *query, + StrategyNumber strategy, Oid collation, bool is_leaf, + const gbtree_vinfo *tinfo, FmgrInfo *flinfo); + +extern GIST_SPLITVEC *gbt_var_picksplit(const GistEntryVector *entryvec, GIST_SPLITVEC *v, + Oid collation, const gbtree_vinfo *tinfo, FmgrInfo *flinfo); + +extern void gbt_var_bin_union(Datum *u, GBT_VARKEY *e, Oid collation, + const gbtree_vinfo *tinfo, FmgrInfo *flinfo); + +#endif |