127 lines
3.8 KiB
C++
127 lines
3.8 KiB
C++
/*
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* contrib/btree_gist/btree_bytea.c
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*/
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#include "postgres.h"
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#include "knl/knl_variable.h"
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#include "btree_gist.h"
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#include "btree_utils_var.h"
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#include "utils/bytea.h"
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/*
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** Bytea ops
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*/
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PG_FUNCTION_INFO_V1(gbt_bytea_compress);
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PG_FUNCTION_INFO_V1(gbt_bytea_union);
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PG_FUNCTION_INFO_V1(gbt_bytea_picksplit);
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PG_FUNCTION_INFO_V1(gbt_bytea_consistent);
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PG_FUNCTION_INFO_V1(gbt_bytea_penalty);
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PG_FUNCTION_INFO_V1(gbt_bytea_same);
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extern "C" Datum gbt_bytea_compress(PG_FUNCTION_ARGS);
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extern "C" Datum gbt_bytea_union(PG_FUNCTION_ARGS);
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extern "C" Datum gbt_bytea_picksplit(PG_FUNCTION_ARGS);
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extern "C" Datum gbt_bytea_consistent(PG_FUNCTION_ARGS);
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extern "C" Datum gbt_bytea_penalty(PG_FUNCTION_ARGS);
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extern "C" Datum gbt_bytea_same(PG_FUNCTION_ARGS);
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/* define for comparison */
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static bool gbt_byteagt(const void* a, const void* b, Oid collation)
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{
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return DatumGetBool(DirectFunctionCall2(byteagt, PointerGetDatum(a), PointerGetDatum(b)));
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}
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static bool gbt_byteage(const void* a, const void* b, Oid collation)
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{
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return DatumGetBool(DirectFunctionCall2(byteage, PointerGetDatum(a), PointerGetDatum(b)));
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}
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static bool gbt_byteaeq(const void* a, const void* b, Oid collation)
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{
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return DatumGetBool(DirectFunctionCall2(byteaeq, PointerGetDatum(a), PointerGetDatum(b)));
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}
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static bool gbt_byteale(const void* a, const void* b, Oid collation)
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{
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return DatumGetBool(DirectFunctionCall2(byteale, PointerGetDatum(a), PointerGetDatum(b)));
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}
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static bool gbt_bytealt(const void* a, const void* b, Oid collation)
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{
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return DatumGetBool(DirectFunctionCall2(bytealt, PointerGetDatum(a), PointerGetDatum(b)));
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}
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static int32 gbt_byteacmp(const void* a, const void* b, Oid collation)
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{
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return DatumGetInt32(DirectFunctionCall2(byteacmp, PointerGetDatum(a), PointerGetDatum(b)));
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}
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static const gbtree_vinfo tinfo = {
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gbt_t_bytea, 0, TRUE, gbt_byteagt, gbt_byteage, gbt_byteaeq, gbt_byteale, gbt_bytealt, gbt_byteacmp, NULL};
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/**************************************************
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* Text ops
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**************************************************/
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Datum gbt_bytea_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_var_compress(entry, &tinfo));
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}
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Datum gbt_bytea_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*)DatumGetByteaP(PG_GETARG_DATUM(1));
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StrategyNumber strategy = (StrategyNumber)PG_GETARG_UINT16(2);
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bool* recheck = (bool*)PG_GETARG_POINTER(4);
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bool retval = false;
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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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retval = gbt_var_consistent(&r, query, strategy, PG_GET_COLLATION(), GIST_LEAF(entry), &tinfo);
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PG_RETURN_BOOL(retval);
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}
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Datum gbt_bytea_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(), &tinfo));
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}
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Datum gbt_bytea_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(), &tinfo);
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PG_RETURN_POINTER(v);
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}
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Datum gbt_bytea_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);
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PG_RETURN_POINTER(result);
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}
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Datum gbt_bytea_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(), &tinfo));
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}
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