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Diffstat (limited to '')
| -rw-r--r-- | contrib/btree_gist/btree_bool.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/contrib/btree_gist/btree_bool.c b/contrib/btree_gist/btree_bool.c new file mode 100644 index 0000000..8b2af12 --- /dev/null +++ b/contrib/btree_gist/btree_bool.c @@ -0,0 +1,169 @@ +/* + * contrib/btree_gist/btree_bool.c + */ +#include "postgres.h" + +#include "btree_gist.h" +#include "btree_utils_num.h" +#include "common/int.h" + +typedef struct boolkey +{ + bool lower; + bool upper; +} boolKEY; + +/* +** bool ops +*/ +PG_FUNCTION_INFO_V1(gbt_bool_compress); +PG_FUNCTION_INFO_V1(gbt_bool_fetch); +PG_FUNCTION_INFO_V1(gbt_bool_union); +PG_FUNCTION_INFO_V1(gbt_bool_picksplit); +PG_FUNCTION_INFO_V1(gbt_bool_consistent); +PG_FUNCTION_INFO_V1(gbt_bool_penalty); +PG_FUNCTION_INFO_V1(gbt_bool_same); + +static bool +gbt_boolgt(const void *a, const void *b, FmgrInfo *flinfo) +{ + return (*((const bool *) a) > *((const bool *) b)); +} +static bool +gbt_boolge(const void *a, const void *b, FmgrInfo *flinfo) +{ + return (*((const bool *) a) >= *((const bool *) b)); +} +static bool +gbt_booleq(const void *a, const void *b, FmgrInfo *flinfo) +{ + return (*((const bool *) a) == *((const bool *) b)); +} +static bool +gbt_boolle(const void *a, const void *b, FmgrInfo *flinfo) +{ + return (*((const bool *) a) <= *((const bool *) b)); +} +static bool +gbt_boollt(const void *a, const void *b, FmgrInfo *flinfo) +{ + return (*((const bool *) a) < *((const bool *) b)); +} + +static int +gbt_boolkey_cmp(const void *a, const void *b, FmgrInfo *flinfo) +{ + boolKEY *ia = (boolKEY *) (((const Nsrt *) a)->t); + boolKEY *ib = (boolKEY *) (((const Nsrt *) b)->t); + + if (ia->lower == ib->lower) + { + if (ia->upper == ib->upper) + return 0; + + return (ia->upper > ib->upper) ? 1 : -1; + } + + return (ia->lower > ib->lower) ? 1 : -1; +} + + +static const gbtree_ninfo tinfo = +{ + gbt_t_bool, + sizeof(bool), + 2, /* sizeof(gbtreekey2) */ + gbt_boolgt, + gbt_boolge, + gbt_booleq, + gbt_boolle, + gbt_boollt, + gbt_boolkey_cmp, +}; + + +/************************************************** + * bool ops + **************************************************/ + + +Datum +gbt_bool_compress(PG_FUNCTION_ARGS) +{ + GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0); + + PG_RETURN_POINTER(gbt_num_compress(entry, &tinfo)); +} + +Datum +gbt_bool_fetch(PG_FUNCTION_ARGS) +{ + GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0); + + PG_RETURN_POINTER(gbt_num_fetch(entry, &tinfo)); +} + +Datum +gbt_bool_consistent(PG_FUNCTION_ARGS) +{ + GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0); + bool query = PG_GETARG_INT16(1); + StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2); + + /* Oid subtype = PG_GETARG_OID(3); */ + bool *recheck = (bool *) PG_GETARG_POINTER(4); + boolKEY *kkk = (boolKEY *) DatumGetPointer(entry->key); + GBT_NUMKEY_R key; + + /* All cases served by this function are exact */ + *recheck = false; + + key.lower = (GBT_NUMKEY *) &kkk->lower; + key.upper = (GBT_NUMKEY *) &kkk->upper; + + PG_RETURN_BOOL(gbt_num_consistent(&key, (void *) &query, &strategy, + GIST_LEAF(entry), &tinfo, fcinfo->flinfo)); +} + + +Datum +gbt_bool_union(PG_FUNCTION_ARGS) +{ + GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0); + void *out = palloc(sizeof(boolKEY)); + + *(int *) PG_GETARG_POINTER(1) = sizeof(boolKEY); + PG_RETURN_POINTER(gbt_num_union((void *) out, entryvec, &tinfo, fcinfo->flinfo)); +} + + +Datum +gbt_bool_penalty(PG_FUNCTION_ARGS) +{ + boolKEY *origentry = (boolKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key); + boolKEY *newentry = (boolKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(1))->key); + float *result = (float *) PG_GETARG_POINTER(2); + + penalty_num(result, origentry->lower, origentry->upper, newentry->lower, newentry->upper); + + PG_RETURN_POINTER(result); +} + +Datum +gbt_bool_picksplit(PG_FUNCTION_ARGS) +{ + PG_RETURN_POINTER(gbt_num_picksplit((GistEntryVector *) PG_GETARG_POINTER(0), + (GIST_SPLITVEC *) PG_GETARG_POINTER(1), + &tinfo, fcinfo->flinfo)); +} + +Datum +gbt_bool_same(PG_FUNCTION_ARGS) +{ + boolKEY *b1 = (boolKEY *) PG_GETARG_POINTER(0); + boolKEY *b2 = (boolKEY *) PG_GETARG_POINTER(1); + bool *result = (bool *) PG_GETARG_POINTER(2); + + *result = gbt_num_same((void *) b1, (void *) b2, &tinfo, fcinfo->flinfo); + PG_RETURN_POINTER(result); +} |