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New version. Add support for int2, int8, float4, float8, timestamp with/without time zone, time with/without time zone, date, interval, oid, money and macaddr, char, varchar/text, bytea, numeric, bit, varbit, inet/cidr types for GiST
This commit is contained in:
Teodor Sigaev
227
contrib/btree_gist/btree_numeric.c
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227
contrib/btree_gist/btree_numeric.c
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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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#include "utils/numeric.h"
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/*
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** Bytea ops
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*/
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PG_FUNCTION_INFO_V1(gbt_numeric_compress);
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PG_FUNCTION_INFO_V1(gbt_numeric_union);
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PG_FUNCTION_INFO_V1(gbt_numeric_picksplit);
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PG_FUNCTION_INFO_V1(gbt_numeric_consistent);
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PG_FUNCTION_INFO_V1(gbt_numeric_penalty);
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PG_FUNCTION_INFO_V1(gbt_numeric_same);
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Datum gbt_numeric_compress(PG_FUNCTION_ARGS);
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Datum gbt_numeric_union(PG_FUNCTION_ARGS);
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Datum gbt_numeric_picksplit(PG_FUNCTION_ARGS);
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Datum gbt_numeric_consistent(PG_FUNCTION_ARGS);
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Datum gbt_numeric_penalty(PG_FUNCTION_ARGS);
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Datum gbt_numeric_same(PG_FUNCTION_ARGS);
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/* define for comparison */
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static bool gbt_numeric_gt (const void *a, const void *b)
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{
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return ( DatumGetBool(DirectFunctionCall2( numeric_gt ,PointerGetDatum( a ),PointerGetDatum( b ) ) ) );
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}
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static bool gbt_numeric_ge (const void *a, const void *b)
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{
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return ( DatumGetBool(DirectFunctionCall2( numeric_ge ,PointerGetDatum( a ),PointerGetDatum( b ) ) ) );
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}
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static bool gbt_numeric_eq (const void *a, const void *b)
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{
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return ( DatumGetBool(DirectFunctionCall2( numeric_eq ,PointerGetDatum( a ),PointerGetDatum( b ) ) ) );
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}
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static bool gbt_numeric_le (const void *a, const void *b)
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{
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return ( DatumGetBool(DirectFunctionCall2( numeric_le ,PointerGetDatum( a ),PointerGetDatum( b ) ) ) );
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}
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static bool gbt_numeric_lt (const void *a, const void *b)
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{
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return ( DatumGetBool(DirectFunctionCall2( numeric_lt ,PointerGetDatum( a ),PointerGetDatum( b ) ) ) );
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}
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static int32 gbt_numeric_cmp ( const bytea * a , const bytea * b )
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{
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return
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( DatumGetInt32(DirectFunctionCall2(numeric_cmp,PointerGetDatum(a),PointerGetDatum(b) ) ) );
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}
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static const gbtree_vinfo tinfo =
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{
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gbt_t_numeric,
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FALSE,
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FALSE,
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gbt_numeric_gt,
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gbt_numeric_ge,
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gbt_numeric_eq,
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gbt_numeric_le,
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gbt_numeric_lt,
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gbt_numeric_cmp,
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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_numeric_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
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gbt_numeric_consistent(PG_FUNCTION_ARGS)
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{
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GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
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GBT_VARKEY *ktst = (GBT_VARKEY *) DatumGetPointer ( entry->key ) ;
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GBT_VARKEY *key = (GBT_VARKEY *) DatumGetPointer ( PG_DETOAST_DATUM( entry->key ) );
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void *qtst = ( void * ) DatumGetPointer ( PG_GETARG_DATUM(1) );
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void *query = ( void * ) DatumGetNumeric ( PG_GETARG_DATUM(1) );
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StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
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bool retval = FALSE;
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GBT_VARKEY_R r = gbt_var_key_readable ( key );
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retval = gbt_var_consistent( &r, query, &strategy, GIST_LEAF(entry), &tinfo );
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if ( ktst != key ){
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pfree ( key );
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}
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if ( qtst != query ){
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pfree ( query );
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}
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PG_RETURN_BOOL(retval);
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}
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Datum
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gbt_numeric_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 , &tinfo ) );
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}
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Datum
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gbt_numeric_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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PG_RETURN_POINTER( gbt_var_same ( result, d1 , d2 , &tinfo ));
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}
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Datum
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gbt_numeric_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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Numeric us, os, ds ;
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GBT_VARKEY *org = (GBT_VARKEY *) DatumGetPointer(o->key);
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GBT_VARKEY *newe = (GBT_VARKEY *) DatumGetPointer(n->key);
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Datum uni ;
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GBT_VARKEY_R rk , ok, uk ;
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rk = gbt_var_key_readable ( org );
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uni = PointerGetDatum( gbt_var_key_copy( &rk, TRUE ) );
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gbt_var_bin_union ( &uni , newe, &tinfo );
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ok = gbt_var_key_readable ( org );
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uk = gbt_var_key_readable ( (GBT_VARKEY *) DatumGetPointer(uni) );
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us = DatumGetNumeric(DirectFunctionCall2(
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numeric_sub,
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PointerGetDatum(uk.upper),
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PointerGetDatum(uk.lower)
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));
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pfree ( DatumGetPointer(uni) );
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os = DatumGetNumeric(DirectFunctionCall2(
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numeric_sub,
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PointerGetDatum(ok.upper),
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PointerGetDatum(ok.lower)
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));
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ds = DatumGetNumeric(DirectFunctionCall2(
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numeric_sub,
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NumericGetDatum(us),
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NumericGetDatum(os)
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));
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pfree ( os );
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if ( NUMERIC_IS_NAN( us ) )
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{
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if ( NUMERIC_IS_NAN( os ) )
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{
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*result = 0.0;
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} else {
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*result = 1.0;
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}
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} else {
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Numeric nul = DatumGetNumeric(DirectFunctionCall1( int4_numeric , Int32GetDatum (0) ) );
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*result = 0.0;
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if ( DirectFunctionCall2( numeric_gt , NumericGetDatum(ds), NumericGetDatum(nul) ) )
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{
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*result += FLT_MIN ;
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os = DatumGetNumeric(DirectFunctionCall2(
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numeric_div,
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NumericGetDatum(ds),
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NumericGetDatum(us)
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));
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*result += ( float4 ) DatumGetFloat8( DirectFunctionCall1( numeric_float8_no_overflow , NumericGetDatum(os) ) );
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pfree ( os );
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}
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pfree ( nul );
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}
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if ( *result > 0 )
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*result *= ( FLT_MAX / ( ( (GISTENTRY *) PG_GETARG_POINTER(0))->rel->rd_att->natts + 1 ) );
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pfree ( us );
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pfree ( ds );
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PG_RETURN_POINTER( result );
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}
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Datum
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gbt_numeric_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, &tinfo );
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PG_RETURN_POINTER(v);
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}
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