170 lines
3.9 KiB
C
170 lines
3.9 KiB
C
/*
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* contrib/btree_gist/btree_bool.c
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*/
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#include "postgres.h"
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#include "btree_gist.h"
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#include "btree_utils_num.h"
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#include "common/int.h"
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typedef struct boolkey
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{
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bool lower;
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bool upper;
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} boolKEY;
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/*
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** bool ops
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*/
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PG_FUNCTION_INFO_V1(gbt_bool_compress);
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PG_FUNCTION_INFO_V1(gbt_bool_fetch);
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PG_FUNCTION_INFO_V1(gbt_bool_union);
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PG_FUNCTION_INFO_V1(gbt_bool_picksplit);
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PG_FUNCTION_INFO_V1(gbt_bool_consistent);
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PG_FUNCTION_INFO_V1(gbt_bool_penalty);
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PG_FUNCTION_INFO_V1(gbt_bool_same);
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static bool
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gbt_boolgt(const void *a, const void *b, FmgrInfo *flinfo)
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{
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return (*((const bool *) a) > *((const bool *) b));
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}
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static bool
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gbt_boolge(const void *a, const void *b, FmgrInfo *flinfo)
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{
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return (*((const bool *) a) >= *((const bool *) b));
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}
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static bool
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gbt_booleq(const void *a, const void *b, FmgrInfo *flinfo)
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{
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return (*((const bool *) a) == *((const bool *) b));
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}
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static bool
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gbt_boolle(const void *a, const void *b, FmgrInfo *flinfo)
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{
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return (*((const bool *) a) <= *((const bool *) b));
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}
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static bool
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gbt_boollt(const void *a, const void *b, FmgrInfo *flinfo)
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{
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return (*((const bool *) a) < *((const bool *) b));
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}
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static int
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gbt_boolkey_cmp(const void *a, const void *b, FmgrInfo *flinfo)
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{
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boolKEY *ia = (boolKEY *) (((const Nsrt *) a)->t);
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boolKEY *ib = (boolKEY *) (((const Nsrt *) b)->t);
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if (ia->lower == ib->lower)
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{
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if (ia->upper == ib->upper)
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return 0;
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return (ia->upper > ib->upper) ? 1 : -1;
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}
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return (ia->lower > ib->lower) ? 1 : -1;
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}
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static const gbtree_ninfo tinfo =
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{
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gbt_t_bool,
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sizeof(bool),
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2, /* sizeof(gbtreekey2) */
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gbt_boolgt,
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gbt_boolge,
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gbt_booleq,
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gbt_boolle,
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gbt_boollt,
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gbt_boolkey_cmp,
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};
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/**************************************************
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* bool ops
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**************************************************/
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Datum
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gbt_bool_compress(PG_FUNCTION_ARGS)
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{
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GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
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PG_RETURN_POINTER(gbt_num_compress(entry, &tinfo));
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}
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Datum
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gbt_bool_fetch(PG_FUNCTION_ARGS)
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{
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GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
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PG_RETURN_POINTER(gbt_num_fetch(entry, &tinfo));
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}
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Datum
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gbt_bool_consistent(PG_FUNCTION_ARGS)
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{
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GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
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bool query = PG_GETARG_INT16(1);
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StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
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/* Oid subtype = PG_GETARG_OID(3); */
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bool *recheck = (bool *) PG_GETARG_POINTER(4);
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boolKEY *kkk = (boolKEY *) DatumGetPointer(entry->key);
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GBT_NUMKEY_R key;
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/* All cases served by this function are exact */
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*recheck = false;
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key.lower = (GBT_NUMKEY *) &kkk->lower;
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key.upper = (GBT_NUMKEY *) &kkk->upper;
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PG_RETURN_BOOL(gbt_num_consistent(&key, (void *) &query, &strategy,
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GIST_LEAF(entry), &tinfo, fcinfo->flinfo));
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}
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Datum
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gbt_bool_union(PG_FUNCTION_ARGS)
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{
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GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
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void *out = palloc(sizeof(boolKEY));
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*(int *) PG_GETARG_POINTER(1) = sizeof(boolKEY);
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PG_RETURN_POINTER(gbt_num_union((void *) out, entryvec, &tinfo, fcinfo->flinfo));
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}
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Datum
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gbt_bool_penalty(PG_FUNCTION_ARGS)
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{
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boolKEY *origentry = (boolKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
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boolKEY *newentry = (boolKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(1))->key);
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float *result = (float *) PG_GETARG_POINTER(2);
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penalty_num(result, origentry->lower, origentry->upper, newentry->lower, newentry->upper);
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PG_RETURN_POINTER(result);
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}
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Datum
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gbt_bool_picksplit(PG_FUNCTION_ARGS)
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{
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PG_RETURN_POINTER(gbt_num_picksplit((GistEntryVector *) PG_GETARG_POINTER(0),
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(GIST_SPLITVEC *) PG_GETARG_POINTER(1),
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&tinfo, fcinfo->flinfo));
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}
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Datum
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gbt_bool_same(PG_FUNCTION_ARGS)
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{
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boolKEY *b1 = (boolKEY *) PG_GETARG_POINTER(0);
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boolKEY *b2 = (boolKEY *) PG_GETARG_POINTER(1);
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bool *result = (bool *) PG_GETARG_POINTER(2);
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*result = gbt_num_same((void *) b1, (void *) b2, &tinfo, fcinfo->flinfo);
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PG_RETURN_POINTER(result);
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}
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