186 lines
4.6 KiB
C
186 lines
4.6 KiB
C
#include "btree_gist.h"
|
|
#include "btree_utils_var.h"
|
|
#include "utils/builtins.h"
|
|
#include "utils/varbit.h"
|
|
|
|
|
|
/*
|
|
** Bit ops
|
|
*/
|
|
PG_FUNCTION_INFO_V1(gbt_bit_compress);
|
|
PG_FUNCTION_INFO_V1(gbt_bit_union);
|
|
PG_FUNCTION_INFO_V1(gbt_bit_picksplit);
|
|
PG_FUNCTION_INFO_V1(gbt_bit_consistent);
|
|
PG_FUNCTION_INFO_V1(gbt_bit_penalty);
|
|
PG_FUNCTION_INFO_V1(gbt_bit_same);
|
|
|
|
Datum gbt_bit_compress(PG_FUNCTION_ARGS);
|
|
Datum gbt_bit_union(PG_FUNCTION_ARGS);
|
|
Datum gbt_bit_picksplit(PG_FUNCTION_ARGS);
|
|
Datum gbt_bit_consistent(PG_FUNCTION_ARGS);
|
|
Datum gbt_bit_penalty(PG_FUNCTION_ARGS);
|
|
Datum gbt_bit_same(PG_FUNCTION_ARGS);
|
|
|
|
|
|
|
|
/* define for comparison */
|
|
|
|
static bool gbt_bitgt (const void *a, const void *b)
|
|
{
|
|
return ( DatumGetBool(DirectFunctionCall2( bitgt ,PointerGetDatum( a ),PointerGetDatum( b ) ) ) );
|
|
}
|
|
|
|
static bool gbt_bitge (const void *a, const void *b)
|
|
{
|
|
return ( DatumGetBool(DirectFunctionCall2( bitge ,PointerGetDatum( a ),PointerGetDatum( b ) ) ) );
|
|
}
|
|
|
|
static bool gbt_biteq (const void *a, const void *b)
|
|
{
|
|
return ( DatumGetBool(DirectFunctionCall2( biteq ,PointerGetDatum( a ),PointerGetDatum( b ) ) ) );
|
|
}
|
|
|
|
static bool gbt_bitle (const void *a, const void *b)
|
|
{
|
|
return ( DatumGetBool(DirectFunctionCall2( bitle ,PointerGetDatum( a ),PointerGetDatum( b ) ) ) );
|
|
}
|
|
|
|
static bool gbt_bitlt (const void *a, const void *b)
|
|
{
|
|
return ( DatumGetBool(DirectFunctionCall2( bitlt ,PointerGetDatum( a ),PointerGetDatum( b ) ) ) );
|
|
}
|
|
|
|
static int32 gbt_bitcmp ( const bytea * a , const bytea * b )
|
|
{
|
|
return
|
|
( DatumGetInt32(DirectFunctionCall2(byteacmp,PointerGetDatum(a),PointerGetDatum(b) ) ) );
|
|
}
|
|
|
|
|
|
static bytea *
|
|
gbt_bit_xfrm ( bytea * leaf )
|
|
{
|
|
bytea * out = leaf;
|
|
int s = VARBITBYTES(leaf) + VARHDRSZ;
|
|
|
|
out = palloc ( s );
|
|
VARATT_SIZEP(out) = s;
|
|
memcpy ( (void*)VARDATA(out), (void*)VARBITS(leaf), VARBITBYTES(leaf) );
|
|
return out;
|
|
}
|
|
|
|
|
|
|
|
|
|
static GBT_VARKEY * gbt_bit_l2n ( GBT_VARKEY * leaf )
|
|
{
|
|
|
|
GBT_VARKEY *out = leaf ;
|
|
GBT_VARKEY_R r = gbt_var_key_readable ( leaf );
|
|
bytea *o ;
|
|
|
|
o = gbt_bit_xfrm (r.lower);
|
|
r.upper = r.lower = o;
|
|
out = gbt_var_key_copy( &r, TRUE );
|
|
pfree(o);
|
|
|
|
return out;
|
|
|
|
}
|
|
|
|
static const gbtree_vinfo tinfo =
|
|
{
|
|
gbt_t_bit,
|
|
FALSE,
|
|
TRUE,
|
|
gbt_bitgt,
|
|
gbt_bitge,
|
|
gbt_biteq,
|
|
gbt_bitle,
|
|
gbt_bitlt,
|
|
gbt_bitcmp,
|
|
gbt_bit_l2n
|
|
};
|
|
|
|
|
|
/**************************************************
|
|
* Bit ops
|
|
**************************************************/
|
|
|
|
Datum
|
|
gbt_bit_compress (PG_FUNCTION_ARGS)
|
|
{
|
|
GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
|
|
PG_RETURN_POINTER ( gbt_var_compress( entry, &tinfo ) );
|
|
}
|
|
|
|
Datum
|
|
gbt_bit_consistent(PG_FUNCTION_ARGS)
|
|
{
|
|
GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
|
|
GBT_VARKEY *ktst = (GBT_VARKEY *) DatumGetPointer ( entry->key ) ;
|
|
GBT_VARKEY *key = (GBT_VARKEY *) DatumGetPointer ( PG_DETOAST_DATUM( entry->key ) );
|
|
void *qtst = ( void * ) DatumGetPointer( PG_GETARG_DATUM(1) );
|
|
void *query = ( void * ) DatumGetByteaP ( PG_GETARG_DATUM(1) );
|
|
StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
|
|
bool retval = FALSE;
|
|
GBT_VARKEY_R r = gbt_var_key_readable ( key );
|
|
|
|
if ( GIST_LEAF(entry) )
|
|
{
|
|
retval = gbt_var_consistent( &r, query, &strategy, TRUE, &tinfo );
|
|
} else {
|
|
bytea * q = gbt_bit_xfrm ( ( bytea * ) query );
|
|
retval = gbt_var_consistent( &r, (void*)q, &strategy, FALSE, &tinfo );
|
|
pfree(q);
|
|
}
|
|
|
|
if ( ktst != key ){
|
|
pfree ( key );
|
|
}
|
|
if ( qtst != query ){
|
|
pfree ( query );
|
|
}
|
|
PG_RETURN_BOOL(retval);
|
|
}
|
|
|
|
|
|
|
|
Datum
|
|
gbt_bit_union(PG_FUNCTION_ARGS)
|
|
{
|
|
GistEntryVector * entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
|
|
int32 * size = (int *) PG_GETARG_POINTER(1);
|
|
PG_RETURN_POINTER( gbt_var_union ( entryvec , size , &tinfo ) );
|
|
}
|
|
|
|
|
|
Datum
|
|
gbt_bit_picksplit(PG_FUNCTION_ARGS)
|
|
{
|
|
GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
|
|
GIST_SPLITVEC *v = (GIST_SPLITVEC *) PG_GETARG_POINTER(1);
|
|
gbt_var_picksplit ( entryvec, v, &tinfo );
|
|
PG_RETURN_POINTER(v);
|
|
}
|
|
|
|
Datum
|
|
gbt_bit_same(PG_FUNCTION_ARGS)
|
|
{
|
|
Datum d1 = PG_GETARG_DATUM(0);
|
|
Datum d2 = PG_GETARG_DATUM(1);
|
|
bool *result = (bool *) PG_GETARG_POINTER(2);
|
|
PG_RETURN_POINTER( gbt_var_same ( result, d1 , d2 , &tinfo ));
|
|
}
|
|
|
|
|
|
Datum
|
|
gbt_bit_penalty(PG_FUNCTION_ARGS)
|
|
{
|
|
float *result = (float *) PG_GETARG_POINTER(2);
|
|
GISTENTRY * o = (GISTENTRY *) PG_GETARG_POINTER(0);
|
|
GISTENTRY * n = (GISTENTRY *) PG_GETARG_POINTER(1);
|
|
PG_RETURN_POINTER( gbt_var_penalty ( result ,o , n, &tinfo ) );
|
|
}
|
|
|