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btree_oid.c
btree_text.c
btree_time.c
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GNUmakefile.in
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aclocal.m4
configure
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The lower case spellings are C and C++ standard and are used in most parts of the PostgreSQL sources. The upper case spellings are only used in some files/modules. So standardize on the standard spellings. The APIs for ICU, Perl, and Windows define their own TRUE and FALSE, so those are left as is when using those APIs. In code comments, we use the lower-case spelling for the C concepts and keep the upper-case spelling for the SQL concepts. Reviewed-by: Michael Paquier <michael.paquier@gmail.com>
242 lines
5.5 KiB
C
242 lines
5.5 KiB
C
/*
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* contrib/btree_gist/btree_text.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_var.h"
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#include "utils/builtins.h"
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/*
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** Text ops
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*/
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PG_FUNCTION_INFO_V1(gbt_text_compress);
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PG_FUNCTION_INFO_V1(gbt_bpchar_compress);
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PG_FUNCTION_INFO_V1(gbt_text_union);
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PG_FUNCTION_INFO_V1(gbt_text_picksplit);
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PG_FUNCTION_INFO_V1(gbt_text_consistent);
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PG_FUNCTION_INFO_V1(gbt_bpchar_consistent);
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PG_FUNCTION_INFO_V1(gbt_text_penalty);
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PG_FUNCTION_INFO_V1(gbt_text_same);
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/* define for comparison */
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static bool
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gbt_textgt(const void *a, const void *b, Oid collation, FmgrInfo *flinfo)
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{
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return DatumGetBool(DirectFunctionCall2Coll(text_gt,
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collation,
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PointerGetDatum(a),
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PointerGetDatum(b)));
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}
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static bool
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gbt_textge(const void *a, const void *b, Oid collation, FmgrInfo *flinfo)
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{
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return DatumGetBool(DirectFunctionCall2Coll(text_ge,
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collation,
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PointerGetDatum(a),
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PointerGetDatum(b)));
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}
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static bool
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gbt_texteq(const void *a, const void *b, Oid collation, FmgrInfo *flinfo)
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{
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return DatumGetBool(DirectFunctionCall2Coll(texteq,
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collation,
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PointerGetDatum(a),
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PointerGetDatum(b)));
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}
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static bool
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gbt_textle(const void *a, const void *b, Oid collation, FmgrInfo *flinfo)
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{
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return DatumGetBool(DirectFunctionCall2Coll(text_le,
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collation,
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PointerGetDatum(a),
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PointerGetDatum(b)));
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}
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static bool
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gbt_textlt(const void *a, const void *b, Oid collation, FmgrInfo *flinfo)
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{
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return DatumGetBool(DirectFunctionCall2Coll(text_lt,
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collation,
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PointerGetDatum(a),
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PointerGetDatum(b)));
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}
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static int32
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gbt_textcmp(const void *a, const void *b, Oid collation, FmgrInfo *flinfo)
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{
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return DatumGetInt32(DirectFunctionCall2Coll(bttextcmp,
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collation,
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PointerGetDatum(a),
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PointerGetDatum(b)));
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}
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static gbtree_vinfo tinfo =
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{
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gbt_t_text,
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0,
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false,
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gbt_textgt,
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gbt_textge,
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gbt_texteq,
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gbt_textle,
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gbt_textlt,
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gbt_textcmp,
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NULL
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};
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/**************************************************
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* Text ops
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**************************************************/
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Datum
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gbt_text_compress(PG_FUNCTION_ARGS)
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{
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GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
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if (tinfo.eml == 0)
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{
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tinfo.eml = pg_database_encoding_max_length();
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}
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PG_RETURN_POINTER(gbt_var_compress(entry, &tinfo));
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}
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Datum
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gbt_bpchar_compress(PG_FUNCTION_ARGS)
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{
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GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
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GISTENTRY *retval;
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if (tinfo.eml == 0)
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{
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tinfo.eml = pg_database_encoding_max_length();
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}
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if (entry->leafkey)
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{
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Datum d = DirectFunctionCall1(rtrim1, entry->key);
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GISTENTRY trim;
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gistentryinit(trim, d,
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entry->rel, entry->page,
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entry->offset, true);
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retval = gbt_var_compress(&trim, &tinfo);
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}
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else
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retval = entry;
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PG_RETURN_POINTER(retval);
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}
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Datum
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gbt_text_consistent(PG_FUNCTION_ARGS)
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{
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GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
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void *query = (void *) DatumGetTextP(PG_GETARG_DATUM(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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bool retval;
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GBT_VARKEY *key = (GBT_VARKEY *) DatumGetPointer(entry->key);
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GBT_VARKEY_R r = gbt_var_key_readable(key);
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/* All cases served by this function are exact */
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*recheck = false;
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if (tinfo.eml == 0)
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{
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tinfo.eml = pg_database_encoding_max_length();
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}
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retval = gbt_var_consistent(&r, query, strategy, PG_GET_COLLATION(),
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GIST_LEAF(entry), &tinfo, fcinfo->flinfo);
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PG_RETURN_BOOL(retval);
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}
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Datum
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gbt_bpchar_consistent(PG_FUNCTION_ARGS)
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{
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GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
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void *query = (void *) DatumGetTextP(PG_GETARG_DATUM(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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bool retval;
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GBT_VARKEY *key = (GBT_VARKEY *) DatumGetPointer(entry->key);
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GBT_VARKEY_R r = gbt_var_key_readable(key);
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void *trim = (void *) DatumGetPointer(DirectFunctionCall1(rtrim1, PointerGetDatum(query)));
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/* All cases served by this function are exact */
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*recheck = false;
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if (tinfo.eml == 0)
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{
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tinfo.eml = pg_database_encoding_max_length();
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}
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retval = gbt_var_consistent(&r, trim, strategy, PG_GET_COLLATION(),
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GIST_LEAF(entry), &tinfo, fcinfo->flinfo);
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PG_RETURN_BOOL(retval);
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}
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Datum
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gbt_text_union(PG_FUNCTION_ARGS)
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{
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GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
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int32 *size = (int *) PG_GETARG_POINTER(1);
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PG_RETURN_POINTER(gbt_var_union(entryvec, size, PG_GET_COLLATION(),
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&tinfo, fcinfo->flinfo));
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}
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Datum
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gbt_text_picksplit(PG_FUNCTION_ARGS)
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{
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GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
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GIST_SPLITVEC *v = (GIST_SPLITVEC *) PG_GETARG_POINTER(1);
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gbt_var_picksplit(entryvec, v, PG_GET_COLLATION(),
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&tinfo, fcinfo->flinfo);
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PG_RETURN_POINTER(v);
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}
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Datum
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gbt_text_same(PG_FUNCTION_ARGS)
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{
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Datum d1 = PG_GETARG_DATUM(0);
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Datum d2 = PG_GETARG_DATUM(1);
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bool *result = (bool *) PG_GETARG_POINTER(2);
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*result = gbt_var_same(d1, d2, PG_GET_COLLATION(), &tinfo, fcinfo->flinfo);
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PG_RETURN_POINTER(result);
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}
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Datum
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gbt_text_penalty(PG_FUNCTION_ARGS)
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{
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GISTENTRY *o = (GISTENTRY *) PG_GETARG_POINTER(0);
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GISTENTRY *n = (GISTENTRY *) PG_GETARG_POINTER(1);
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float *result = (float *) PG_GETARG_POINTER(2);
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PG_RETURN_POINTER(gbt_var_penalty(result, o, n, PG_GET_COLLATION(),
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&tinfo, fcinfo->flinfo));
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}
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