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New contrib module for BTREE emulation in GiST.

Browse Source 
From Oleg Bartunov and Teodor Sigaev.
This commit is contained in:
Tom Lane 2001-08-22 18:27:54 +00:00
parent a54075a6d6
commit a9289708af
10 changed files with 3003 additions and 3 deletions
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6
contrib/Makefile
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@ -1,4 +1,4 @@
# $Header: /cvsroot/pgsql/contrib/Makefile,v 1.23 2001/07/06 23:07:19 petere Exp $ # $Header: /cvsroot/pgsql/contrib/Makefile,v 1.24 2001/08/22 18:27:53 tgl Exp $
subdir = contrib subdir = contrib
top_builddir = .. top_builddir = ..
@ -6,18 +6,19 @@ include $(top_builddir)/src/Makefile.global
WANTED_DIRS = \ WANTED_DIRS = \
array \ array \
btree_gist \
cube \ cube \
dbase \ dbase \
dblink \ dblink \
earthdistance \ earthdistance \
findoidjoins \ findoidjoins \
fulltextindex \ fulltextindex \
fuzzystrmatch \
intarray \ intarray \
isbn_issn \ isbn_issn \
lo \ lo \
mSQL-interface \ mSQL-interface \
mac \ mac \
metaphone \
miscutil \ miscutil \
noupdate \ noupdate \
oid2name \ oid2name \
@ -30,7 +31,6 @@ WANTED_DIRS = \
rserv \ rserv \
rtree_gist \ rtree_gist \
seg \ seg \
soundex \
spi \ spi \
string \ string \
tips \ tips \

8
contrib/README
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@ -30,6 +30,14 @@ array -
Array iterator functions Array iterator functions
by Massimo Dal Zotto <dz@cs.unitn.it> by Massimo Dal Zotto <dz@cs.unitn.it>
btree_gist -
Support for emulating BTREE indexing in GiST
by Oleg Bartunov <oleg@sai.msu.su> and Teodor Sigaev <teodor@stack.net>
chkpass -
An auto-encrypted password datatype
by D'Arcy J.M. Cain <darcy@druid.net>
cube - cube -
Multidimensional-cube datatype (GiST indexing example) Multidimensional-cube datatype (GiST indexing example)
by Gene Selkov, Jr. <selkovjr@mcs.anl.gov> by Gene Selkov, Jr. <selkovjr@mcs.anl.gov>

66
contrib/btree_gist/Makefile Normal file
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subdir = contrib/btree_gist
top_builddir = ../..
include $(top_builddir)/src/Makefile.global
# override libdir to install shlib in contrib not main directory
libdir := $(libdir)/contrib
# shared library parameters
NAME= btree_gist
SO_MAJOR_VERSION= 1
SO_MINOR_VERSION= 0
override CPPFLAGS += -I$(srcdir)
OBJS= btree_gist.o
all: all-lib $(NAME).sql
# Shared library stuff
include $(top_srcdir)/src/Makefile.shlib
$(NAME).sql: $(NAME).sql.in
sed -e 's:MODULE_PATHNAME:$(libdir)/$(shlib):g' < $< > $@
.PHONY: submake
submake:
$(MAKE) -C $(top_builddir)/src/test/regress pg_regress
# against installed postmaster
installcheck: submake
$(top_builddir)/src/test/regress/pg_regress btree_gist
# in-tree test doesn't work yet (no way to install my shared library)
#check: all submake
# $(top_builddir)/src/test/regress/pg_regress --temp-install \
# --top-builddir=$(top_builddir) btree_gist
check:
@echo "'make check' is not supported."
@echo "Do 'make install', then 'make installcheck' instead."
install: all installdirs install-lib
#$(INSTALL_DATA) $(srcdir)/README.$(NAME) $(docdir)/contrib
$(INSTALL_DATA) $(NAME).sql $(datadir)/contrib
installdirs:
$(mkinstalldirs) $(docdir)/contrib $(datadir)/contrib $(libdir)
uninstall: uninstall-lib
rm -f $(docdir)/contrib/README.$(NAME) $(datadir)/contrib/$(NAME).sql
clean distclean maintainer-clean: clean-lib
rm -f *.so y.tab.c y.tab.h $(OBJS) $(NAME).sql
# things created by various check targets
rm -rf results tmp_check log
rm -f regression.diffs regression.out regress.out run_check.out
ifeq ($(PORTNAME), win)
rm -f regress.def
endif
depend dep:
$(CC) -MM $(CFLAGS) *.c >depend
ifeq (depend,$(wildcard depend))
include depend
endif

31
contrib/btree_gist/README.btree_gist Normal file
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@ -0,0 +1,31 @@
This is B-Tree implementation using GiST for int4 and
timestamp types.
All work was done by Teodor Sigaev (teodor@stack.net) and Oleg Bartunov
(oleg@sai.msu.su). See http://www.sai.msu.su/~megera/postgres/gist
for additional information.
NOTICE:
This version will works only with postgresql version 7.2 and above
because of changes in interface of function calling and in system
tables.
INSTALLATION:
gmake
gmake install
-- load functions
psql <database> < btree_gist.sql
REGRESSION TEST:
gmake installcheck
EXAMPLE USAGE:
create table test (a int4);
-- create index
create index testidx on test using gist (a);
-- query
select * from test where a < 10;

557
contrib/btree_gist/btree_gist.c Normal file
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@ -0,0 +1,557 @@
#include "postgres.h"
#include "access/gist.h"
#include "access/itup.h"
#include "access/nbtree.h"
#include "utils/palloc.h"
#include "utils/geo_decls.h"
#include "utils/elog.h"
typedef int (*CMPFUNC)(const void *a, const void *b);
typedef void (*BINARY_UNION)(Datum*, char*);
typedef struct intkey {
int4 lower;
int4 upper;
} INT4KEY;
typedef struct tskey {
Timestamp lower;
Timestamp upper;
} TSKEY;
/* used for sorting */
typedef struct rix {
int index;
char *r;
} RIX;
/*
** int4key in/out
*/
PG_FUNCTION_INFO_V1(int4key_in);
PG_FUNCTION_INFO_V1(int4key_out);
Datum int4key_in(PG_FUNCTION_ARGS);
Datum int4key_out(PG_FUNCTION_ARGS);
/*
** tskey in/out
*/
PG_FUNCTION_INFO_V1(tskey_in);
PG_FUNCTION_INFO_V1(tskey_out);
Datum tskey_in(PG_FUNCTION_ARGS);
Datum tskey_out(PG_FUNCTION_ARGS);
/*
** int4 ops
*/
PG_FUNCTION_INFO_V1(gint4_compress);
PG_FUNCTION_INFO_V1(gint4_union);
PG_FUNCTION_INFO_V1(gint4_picksplit);
PG_FUNCTION_INFO_V1(gint4_consistent);
PG_FUNCTION_INFO_V1(gint4_penalty);
PG_FUNCTION_INFO_V1(gint4_same);
Datum gint4_compress(PG_FUNCTION_ARGS);
Datum gint4_union(PG_FUNCTION_ARGS);
Datum gint4_picksplit(PG_FUNCTION_ARGS);
Datum gint4_consistent(PG_FUNCTION_ARGS);
Datum gint4_penalty(PG_FUNCTION_ARGS);
Datum gint4_same(PG_FUNCTION_ARGS);
static void gint4_binary_union(Datum *r1, char *r2);
static int int4key_cmp(const void *a, const void *b);
/*
** timestamp ops
*/
PG_FUNCTION_INFO_V1(gts_compress);
PG_FUNCTION_INFO_V1(gts_union);
PG_FUNCTION_INFO_V1(gts_picksplit);
PG_FUNCTION_INFO_V1(gts_consistent);
PG_FUNCTION_INFO_V1(gts_penalty);
PG_FUNCTION_INFO_V1(gts_same);
Datum gts_compress(PG_FUNCTION_ARGS);
Datum gts_union(PG_FUNCTION_ARGS);
Datum gts_picksplit(PG_FUNCTION_ARGS);
Datum gts_consistent(PG_FUNCTION_ARGS);
Datum gts_penalty(PG_FUNCTION_ARGS);
Datum gts_same(PG_FUNCTION_ARGS);
static void gts_binary_union(Datum *r1, char *r2);
static int tskey_cmp(const void *a, const void *b);
/* define for comparison */
#define TSGE( ts1, ts2 ) (DatumGetBool(DirectFunctionCall2( \
timestamp_ge, \
PointerGetDatum( ts1 ), \
PointerGetDatum( ts2 ) \
)))
#define TSGT( ts1, ts2 ) (DatumGetBool(DirectFunctionCall2( \
timestamp_gt, \
PointerGetDatum( ts1 ), \
PointerGetDatum( ts2 ) \
)))
#define TSEQ( ts1, ts2 ) (DatumGetBool(DirectFunctionCall2( \
timestamp_eq, \
PointerGetDatum( ts1 ), \
PointerGetDatum( ts2 ) \
)))
#define TSLT( ts1, ts2 ) (DatumGetBool(DirectFunctionCall2( \
timestamp_lt, \
PointerGetDatum( ts1 ), \
PointerGetDatum( ts2 ) \
)))
#define TSLE( ts1, ts2 ) (DatumGetBool(DirectFunctionCall2( \
timestamp_le, \
PointerGetDatum( ts1 ), \
PointerGetDatum( ts2 ) \
)))
/*
** Common btree-function (for all ops)
*/
static GIST_SPLITVEC * btree_picksplit(bytea *entryvec, GIST_SPLITVEC *v,
BINARY_UNION bu, CMPFUNC cmp);
PG_FUNCTION_INFO_V1(btree_decompress);
Datum btree_decompress(PG_FUNCTION_ARGS);
/**************************************************
* int4 ops
**************************************************/
Datum
gint4_compress(PG_FUNCTION_ARGS)
{
GISTENTRY *entry=(GISTENTRY*)PG_GETARG_POINTER(0);
GISTENTRY *retval;
if ( entry->leafkey) {
INT4KEY *r = palloc(sizeof(INT4KEY));
retval = palloc(sizeof(GISTENTRY));
r->lower = r->upper = (entry->key);
gistentryinit(*retval, PointerGetDatum(r), entry->rel, entry->page,
entry->offset, sizeof(INT4KEY),FALSE);
} else {
retval = entry;
}
PG_RETURN_POINTER( retval );
}
Datum
gint4_consistent(PG_FUNCTION_ARGS)
{
GISTENTRY *entry = (GISTENTRY*) PG_GETARG_POINTER(0);
int4 query = PG_GETARG_INT32(1);
INT4KEY *kkk= (INT4KEY *)DatumGetPointer(entry->key);
StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
bool retval;
switch(strategy) {
case BTLessEqualStrategyNumber:
retval = ( query >= kkk->lower );
break;
case BTLessStrategyNumber:
if (GIST_LEAF(entry))
retval = ( query > kkk->lower );
else
retval = ( query >= kkk->lower );
break;
case BTEqualStrategyNumber:
/* in leaf page kkk->lower always = kkk->upper */
if (GIST_LEAF(entry))
retval = ( query == kkk->lower );
else
retval = ( kkk->lower <= query && query <= kkk->upper );
break;
case BTGreaterStrategyNumber:
if (GIST_LEAF(entry))
retval = ( query < kkk->upper );
else
retval = ( query <= kkk->upper );
break;
case BTGreaterEqualStrategyNumber:
retval = ( query <= kkk->upper );
break;
default:
retval = FALSE;
}
PG_RETURN_BOOL(retval);
}
Datum
gint4_union(PG_FUNCTION_ARGS)
{
bytea *entryvec = (bytea*) PG_GETARG_POINTER(0);
int i, numranges;
INT4KEY *cur, *out=palloc(sizeof(INT4KEY));
numranges = (VARSIZE(entryvec) - VARHDRSZ)/sizeof(GISTENTRY);
*(int*) PG_GETARG_POINTER(1) = sizeof(INT4KEY);
cur = (INT4KEY *)DatumGetPointer( (((GISTENTRY *)(VARDATA(entryvec)))[0].key) );
out->lower = cur->lower;
out->upper = cur->upper;
for (i = 1; i < numranges; i++) {
cur = (INT4KEY *)DatumGetPointer( (((GISTENTRY *)(VARDATA(entryvec)))[i].key) );
if ( out->lower > cur->lower ) out->lower = cur->lower;
if ( out->upper < cur->upper ) out->upper = cur->upper;
}
PG_RETURN_POINTER( out );
}
Datum
gint4_penalty(PG_FUNCTION_ARGS)
{
INT4KEY *origentry = (INT4KEY*) DatumGetPointer( ((GISTENTRY*) PG_GETARG_POINTER(0))->key );
INT4KEY *newentry = (INT4KEY*) DatumGetPointer( ((GISTENTRY*) PG_GETARG_POINTER(1))->key );
float *result = (float*) PG_GETARG_POINTER(2);
*result = Max( newentry->upper - origentry->upper, 0 ) +
Max( origentry->lower - newentry->lower, 0 );
PG_RETURN_POINTER( result );
}
Datum
gint4_picksplit(PG_FUNCTION_ARGS)
{
PG_RETURN_POINTER( btree_picksplit(
(bytea*)PG_GETARG_POINTER(0),
(GIST_SPLITVEC*)PG_GETARG_POINTER(1),
gint4_binary_union,
int4key_cmp
) );
}
Datum
gint4_same(PG_FUNCTION_ARGS)
{
INT4KEY *b1 = (INT4KEY*) PG_GETARG_POINTER(0);
INT4KEY *b2 = (INT4KEY*) PG_GETARG_POINTER(1);
bool *result = (bool*) PG_GETARG_POINTER(2);
*result = ( b1->lower == b2->lower && b1->upper == b2->upper ) ? TRUE : FALSE;
PG_RETURN_POINTER(result);
}
static void
gint4_binary_union(Datum *r1, char *r2)
{
INT4KEY *b1;
INT4KEY *b2 = (INT4KEY*) r2;
if ( ! DatumGetPointer( *r1 ) ) {
*r1 = PointerGetDatum( palloc( sizeof(INT4KEY) ) );
b1 = (INT4KEY*)DatumGetPointer( *r1 );
b1->upper = b2->upper;
b1->lower = b2->lower;
} else {
b1 = (INT4KEY*)DatumGetPointer( *r1 );
b1->lower = ( b1->lower > b2->lower ) ?
b2->lower : b1->lower;
b1->upper = ( b1->upper > b2->upper ) ?
b1->upper : b2->upper;
}
}
static int
int4key_cmp(const void *a, const void *b) {
return ( ((INT4KEY*)(((RIX*)a)->r))->lower - ((INT4KEY*)(((RIX*)b)->r))->lower );
}
/**************************************************
* timestamp ops
**************************************************/
Datum
gts_compress(PG_FUNCTION_ARGS)
{
GISTENTRY *entry=(GISTENTRY*)PG_GETARG_POINTER(0);
GISTENTRY *retval;
if ( entry->leafkey) {
TSKEY *r = (TSKEY *)palloc( sizeof(TSKEY) );
retval = palloc(sizeof(GISTENTRY));
if ( entry->key ) {
r->lower = r->upper = *(Timestamp*)(entry->key);
gistentryinit(*retval, PointerGetDatum(r),
entry->rel, entry->page,
entry->offset, sizeof(TSKEY), FALSE);
} else {
gistentryinit(*retval, PointerGetDatum(NULL),
entry->rel, entry->page,
entry->offset, 0, FALSE);
}
} else {
retval = entry;
}
PG_RETURN_POINTER( retval );
}
Datum
gts_consistent(PG_FUNCTION_ARGS)
{
GISTENTRY *entry = (GISTENTRY*) PG_GETARG_POINTER(0);
Timestamp *query = (Timestamp *)PG_GETARG_POINTER(1);
StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
bool retval;
TSKEY *key;
/*
** if entry is not leaf, use gbox_internal_consistent,
** else use gbox_leaf_consistent
*/
if ( ! entry->key )
return FALSE;
key = (TSKEY*) DatumGetPointer(entry->key);
switch(strategy) {
case BTLessEqualStrategyNumber:
retval = TSGE( query, &(key->lower) );
break;
case BTLessStrategyNumber:
if (GIST_LEAF(entry))
retval = TSGT( query, &(key->lower) );
else
retval = TSGE( query, &(key->lower) );
break;
case BTEqualStrategyNumber:
/* in leaf page key->lower always = key->upper */
if (GIST_LEAF(entry))
retval = TSEQ( query, &(key->lower));
else
retval = ( TSLE( &(key->lower), query ) && TSLE( query, &(key->upper) ) );
break;
case BTGreaterStrategyNumber:
if (GIST_LEAF(entry))
retval = TSLT( query, &(key->upper) );
else
retval = TSLE( query, &(key->upper) );
break;
case BTGreaterEqualStrategyNumber:
retval = TSLE( query, &(key->upper) );
break;
default:
retval = FALSE;
}
PG_RETURN_BOOL(retval);
}
Datum
gts_union(PG_FUNCTION_ARGS)
{
bytea *entryvec = (bytea*) PG_GETARG_POINTER(0);
int i, numranges;
TSKEY *cur, *out=palloc(sizeof(TSKEY));
numranges = (VARSIZE(entryvec) - VARHDRSZ)/sizeof(GISTENTRY);
*(int*) PG_GETARG_POINTER(1) = sizeof(TSKEY);
cur = (TSKEY *)DatumGetPointer( (((GISTENTRY *)(VARDATA(entryvec)))[0].key) );
out->lower = cur->lower;
out->upper = cur->upper;
for (i = 1; i < numranges; i++) {
cur = (TSKEY *)DatumGetPointer( (((GISTENTRY *)(VARDATA(entryvec)))[i].key) );
if ( TSGT( &out->lower, &cur->lower ) ) out->lower = cur->lower;
if ( TSLT( &out->upper, &cur->upper ) ) out->upper = cur->upper;
}
PG_RETURN_POINTER( out );
}
Datum
gts_penalty(PG_FUNCTION_ARGS)
{
TSKEY *origentry = (TSKEY*) DatumGetPointer( ((GISTENTRY*) PG_GETARG_POINTER(0))->key );
TSKEY *newentry = (TSKEY*) DatumGetPointer( ((GISTENTRY*) PG_GETARG_POINTER(1))->key );
float *result = (float*) PG_GETARG_POINTER(2);
Interval *intr;
intr = DatumGetIntervalP( DirectFunctionCall2(
timestamp_mi,
TimestampGetDatum( newentry->upper ),
TimestampGetDatum( origentry->upper )) );
/* see interval_larger */
*result = Max( intr->time+intr->month * (30.0 * 86400),0 );
pfree( intr );
intr = DatumGetIntervalP( DirectFunctionCall2(
timestamp_mi,
TimestampGetDatum( origentry->lower ),
TimestampGetDatum( newentry->lower )) );
/* see interval_larger */
*result += Max( intr->time+intr->month * (30.0 * 86400),0 );
pfree( intr );
PG_RETURN_POINTER( result );
}
Datum
gts_picksplit(PG_FUNCTION_ARGS)
{
PG_RETURN_POINTER( btree_picksplit(
(bytea*)PG_GETARG_POINTER(0),
(GIST_SPLITVEC*)PG_GETARG_POINTER(1),
gts_binary_union,
tskey_cmp
) );
}
Datum
gts_same(PG_FUNCTION_ARGS)
{
TSKEY *b1 = (TSKEY*) PG_GETARG_POINTER(0);
TSKEY *b2 = (TSKEY*) PG_GETARG_POINTER(1);
bool *result = (bool*) PG_GETARG_POINTER(2);
if ( b1 && b2 )
*result = ( TSEQ( &(b1->lower), &(b2->lower) ) && TSEQ( &(b1->upper), &(b2->upper) ) ) ? TRUE : FALSE;
else
*result = ( b1==NULL && b2==NULL ) ? TRUE : FALSE;
PG_RETURN_POINTER(result);
}
static void
gts_binary_union(Datum *r1, char *r2)
{
TSKEY *b1;
TSKEY *b2 = (TSKEY*) r2;
if ( ! DatumGetPointer( *r1 ) ) {
*r1 = PointerGetDatum( palloc( sizeof(TSKEY) ) );
b1 = (TSKEY*)DatumGetPointer( *r1 );
b1->upper = b2->upper;
b1->lower = b2->lower;
} else {
b1 = (TSKEY*)DatumGetPointer( *r1 );
b1->lower = ( TSGT( &b1->lower, &b2->lower) ) ?
b2->lower : b1->lower;
b1->upper = ( TSGT( &b1->upper, &b2->upper) ) ?
b1->upper : b2->upper;
}
}
static int
tskey_cmp(const void *a, const void *b) {
Interval *intr;
float result;
intr = DatumGetIntervalP( DirectFunctionCall2(
timestamp_mi,
TimestampGetDatum( ((TSKEY*)(((RIX*)a)->r))->lower ),
TimestampGetDatum( ((TSKEY*)(((RIX*)b)->r))->lower )) );
/* see interval_larger */
result = intr->time+intr->month * (30.0 * 86400);
pfree( intr );
if ( result == 0.0 )
return 0;
else
return ( result>0 ) ? 1 : 0;
}
/**************************************************
* Common btree-function (for all ops)
**************************************************/
/*
** The GiST PickSplit method
*/
static GIST_SPLITVEC *
btree_picksplit(bytea *entryvec, GIST_SPLITVEC *v, BINARY_UNION bu, CMPFUNC cmp)
{
OffsetNumber i;
RIX *array;
OffsetNumber maxoff;
int nbytes;
maxoff = ((VARSIZE(entryvec) - VARHDRSZ)/sizeof(GISTENTRY)) - 1;
nbytes = (maxoff + 2) * sizeof(OffsetNumber);
v->spl_left = (OffsetNumber *) palloc(nbytes);
v->spl_right = (OffsetNumber *) palloc(nbytes);
v->spl_nleft = 0;
v->spl_nright = 0;
v->spl_ldatum = PointerGetDatum( 0 );
v->spl_rdatum = PointerGetDatum( 0 );
array = (RIX*)palloc( sizeof(RIX) * (maxoff+1) );
/* copy the data into RIXes, and sort the RIXes */
for (i = FirstOffsetNumber; i <= maxoff; i = OffsetNumberNext(i)) {
array[i].index = i;
array[i].r=(char *)DatumGetPointer( (((GISTENTRY *)(VARDATA(entryvec)))[i].key) );
}
qsort((void*)&array[FirstOffsetNumber], maxoff - FirstOffsetNumber + 1,
sizeof(RIX), cmp);
for (i = FirstOffsetNumber; i <= maxoff; i = OffsetNumberNext(i)) {
if (i <= (maxoff - FirstOffsetNumber + 1)/2) {
v->spl_left[ v->spl_nleft ] = array[i].index;
v->spl_nleft++;
(*bu)( &v->spl_ldatum, array[i].r );
} else {
v->spl_right[ v->spl_nright ] = array[i].index;
v->spl_nright++;
(*bu)( &v->spl_rdatum, array[i].r );
}
}
pfree(array);
return( v );
}
/*
** GiST DeCompress methods
** do not do anything.
*/
Datum
btree_decompress(PG_FUNCTION_ARGS)
{
PG_RETURN_POINTER(PG_GETARG_POINTER(0));
}
/**************************************************
* In/Out for keys, not really needed
**************************************************/
Datum
int4key_in(PG_FUNCTION_ARGS) {
INT4KEY *key = palloc(sizeof(INT4KEY));
if ( sscanf( PG_GETARG_POINTER(0), "%d|%d", &(key->lower), &(key->upper)) != 2 )
elog(ERROR, "Error in input format");
PG_RETURN_POINTER( key );
}
Datum int4key_out(PG_FUNCTION_ARGS) {
INT4KEY *key = (INT4KEY *) PG_GETARG_POINTER(0);
char *str=palloc(sizeof(char)*22);
sprintf(str,"%d|%d", key->lower, key->upper);
PG_RETURN_POINTER( str );
}
Datum
tskey_in(PG_FUNCTION_ARGS) {
elog(ERROR, "Not implemented");
PG_RETURN_POINTER( NULL );
}
Datum
tskey_out(PG_FUNCTION_ARGS) {
elog(ERROR, "Not implemented");
PG_RETURN_POINTER( NULL );
}

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contrib/btree_gist/btree_gist.sql.in Normal file
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begin transaction;
-- create type of int4 key
CREATE FUNCTION int4key_in(opaque)
RETURNS opaque
AS 'MODULE_PATHNAME'
LANGUAGE 'c' with (isstrict);
CREATE FUNCTION int4key_out(opaque)
RETURNS opaque
AS 'MODULE_PATHNAME'
LANGUAGE 'c' with (isstrict);
CREATE TYPE int4key (
internallength = 8,
input = int4key_in,
output = int4key_out
);
--
--
--
-- int4 ops
--
--
--
-- define the GiST support methods
create function gint4_consistent(opaque,int4,int2) returns bool as 'MODULE_PATHNAME' language 'C';
create function gint4_compress(opaque) returns opaque as 'MODULE_PATHNAME' language 'C';
create function btree_decompress(opaque) returns opaque as 'MODULE_PATHNAME' language 'C';
create function gint4_penalty(opaque,opaque,opaque) returns opaque as 'MODULE_PATHNAME' language 'C' with(isstrict);
create function gint4_picksplit(opaque, opaque) returns opaque as 'MODULE_PATHNAME' language 'C';
create function gint4_union(bytea, opaque) returns int4 as 'MODULE_PATHNAME' language 'C';
create function gint4_same(opaque, opaque, opaque) returns opaque as 'MODULE_PATHNAME' language 'C';
-- add a new opclass
INSERT INTO pg_opclass (opcamid, opcname, opcintype, opckeytype, opcdefault)
SELECT pg_am.oid, 'gist_int4_ops', pg_type.oid, pg_key.oid, true
FROM pg_type, pg_am, pg_type pg_key
WHERE pg_type.typname = 'int4' and
pg_key.typname = 'int4key' and
pg_am.amname='gist';
SELECT o.oid AS opoid, o.oprname
INTO TABLE int_ops_tmp
FROM pg_operator o, pg_type t
WHERE o.oprleft = t.oid and o.oprright = t.oid
and t.typname = 'int4';
-- get the comparators for int4es and store them in a tmp table
INSERT INTO pg_amop (amopclaid, amopopr, amopstrategy, amopreqcheck)
SELECT opcl.oid, c.opoid, 1, 'f'
FROM pg_opclass opcl, int_ops_tmp c
WHERE opcname = 'gist_int4_ops'
and c.oprname = '<';
INSERT INTO pg_amop (amopclaid, amopopr, amopstrategy, amopreqcheck)
SELECT opcl.oid, c.opoid, 2, 'f'
FROM pg_opclass opcl, int_ops_tmp c
WHERE opcname = 'gist_int4_ops'
and c.oprname = '<=';
INSERT INTO pg_amop (amopclaid, amopopr, amopstrategy, amopreqcheck)
SELECT opcl.oid, c.opoid, 3, 'f'
FROM pg_opclass opcl, int_ops_tmp c
WHERE opcname = 'gist_int4_ops'
and c.oprname = '=';
INSERT INTO pg_amop (amopclaid, amopopr, amopstrategy, amopreqcheck)
SELECT opcl.oid, c.opoid, 4, 'f'
FROM pg_opclass opcl, int_ops_tmp c
WHERE opcname = 'gist_int4_ops'
and c.oprname = '>=';
INSERT INTO pg_amop (amopclaid, amopopr, amopstrategy, amopreqcheck)
SELECT opcl.oid, c.opoid, 5, 'f'
FROM pg_opclass opcl, int_ops_tmp c
WHERE opcname = 'gist_int4_ops'
and c.oprname = '>';
DROP table int_ops_tmp;
-- add the entries to amproc for the support methods
-- note the amprocnum numbers associated with each are specific!
INSERT INTO pg_amproc (amopclaid, amproc, amprocnum)
SELECT opcl.oid, pro.oid, 1
FROM pg_opclass opcl, pg_proc pro
WHERE opcname = 'gist_int4_ops'
and proname = 'gint4_consistent';
INSERT INTO pg_amproc (amopclaid, amproc, amprocnum)
SELECT opcl.oid, pro.oid, 2
FROM pg_opclass opcl, pg_proc pro
WHERE opcname = 'gist_int4_ops'
and proname = 'gint4_union';
INSERT INTO pg_amproc (amopclaid, amproc, amprocnum)
SELECT opcl.oid, pro.oid, 3
FROM pg_opclass opcl, pg_proc pro
WHERE opcname = 'gist_int4_ops'
and proname = 'gint4_compress';
INSERT INTO pg_amproc (amopclaid, amproc, amprocnum)
SELECT opcl.oid, pro.oid, 4
FROM pg_opclass opcl, pg_proc pro
WHERE opcname = 'gist_int4_ops'
and proname = 'btree_decompress';
INSERT INTO pg_amproc (amopclaid, amproc, amprocnum)
SELECT opcl.oid, pro.oid, 5
FROM pg_opclass opcl, pg_proc pro
WHERE opcname = 'gist_int4_ops'
and proname = 'gint4_penalty';
INSERT INTO pg_amproc (amopclaid, amproc, amprocnum)
SELECT opcl.oid, pro.oid, 6
FROM pg_opclass opcl, pg_proc pro
WHERE opcname = 'gist_int4_ops'
and proname = 'gint4_picksplit';
INSERT INTO pg_amproc (amopclaid, amproc, amprocnum)
SELECT opcl.oid, pro.oid, 7
FROM pg_opclass opcl, pg_proc pro
WHERE opcname = 'gist_int4_ops'
and proname = 'gint4_same';
--
--
--
-- timestamp ops
--
--
--
-- create type of timestamp key
CREATE FUNCTION tskey_in(opaque)
RETURNS opaque
AS 'MODULE_PATHNAME'
LANGUAGE 'c' with (isstrict);
CREATE FUNCTION tskey_out(opaque)
RETURNS opaque
AS 'MODULE_PATHNAME'
LANGUAGE 'c' with (isstrict);
CREATE TYPE tskey (
internallength = 16,
input = tskey_in,
output = tskey_out
);
create function gts_consistent(opaque,timestamp,int2) returns bool as 'MODULE_PATHNAME' language 'C';
create function gts_compress(opaque) returns opaque as 'MODULE_PATHNAME' language 'C';
create function gts_penalty(opaque,opaque,opaque) returns opaque as 'MODULE_PATHNAME' language 'C' with(isstrict);
create function gts_picksplit(opaque, opaque) returns opaque as 'MODULE_PATHNAME' language 'C';
create function gts_union(bytea, opaque) returns int4 as 'MODULE_PATHNAME' language 'C';
create function gts_same(opaque, opaque, opaque) returns opaque as 'MODULE_PATHNAME' language 'C';
INSERT INTO pg_opclass (opcamid, opcname, opcintype, opckeytype, opcdefault)
SELECT pg_am.oid, 'gist_timestamp_ops', pg_type.oid, pg_key.oid, true
FROM pg_type, pg_am, pg_type pg_key
WHERE pg_type.typname = 'timestamp' and
pg_key.typname = 'tskey' and
pg_am.amname='gist';
SELECT o.oid AS opoid, o.oprname
INTO TABLE timestamp_ops_tmp
FROM pg_operator o, pg_type t
WHERE o.oprleft = t.oid and o.oprright = t.oid
and t.typname = 'timestamp';
INSERT INTO pg_amop (amopclaid, amopopr, amopstrategy, amopreqcheck)
SELECT opcl.oid, c.opoid, 1, 'f'
FROM pg_opclass opcl, timestamp_ops_tmp c
WHERE opcname = 'gist_timestamp_ops'
and c.oprname = '<';
INSERT INTO pg_amop (amopclaid, amopopr, amopstrategy, amopreqcheck)
SELECT opcl.oid, c.opoid, 2, 'f'
FROM pg_opclass opcl, timestamp_ops_tmp c
WHERE opcname = 'gist_timestamp_ops'
and c.oprname = '<=';
INSERT INTO pg_amop (amopclaid, amopopr, amopstrategy, amopreqcheck)
SELECT opcl.oid, c.opoid, 3, 'f'
FROM pg_opclass opcl, timestamp_ops_tmp c
WHERE opcname = 'gist_timestamp_ops'
and c.oprname = '=';
INSERT INTO pg_amop (amopclaid, amopopr, amopstrategy, amopreqcheck)
SELECT opcl.oid, c.opoid, 4, 'f'
FROM pg_opclass opcl, timestamp_ops_tmp c
WHERE opcname = 'gist_timestamp_ops'
and c.oprname = '>=';
INSERT INTO pg_amop (amopclaid, amopopr, amopstrategy, amopreqcheck)
SELECT opcl.oid, c.opoid, 5, 'f'
FROM pg_opclass opcl, timestamp_ops_tmp c
WHERE opcname = 'gist_timestamp_ops'
and c.oprname = '>';
DROP table timestamp_ops_tmp;
-- add the entries to amproc for the support methods
-- note the amprocnum numbers associated with each are specific!
INSERT INTO pg_amproc (amopclaid, amproc, amprocnum)
SELECT opcl.oid, pro.oid, 1
FROM pg_opclass opcl, pg_proc pro
WHERE opcname = 'gist_timestamp_ops'
and proname = 'gts_consistent';
INSERT INTO pg_amproc (amopclaid, amproc, amprocnum)
SELECT opcl.oid, pro.oid, 2
FROM pg_opclass opcl, pg_proc pro
WHERE opcname = 'gist_timestamp_ops'
and proname = 'gts_union';
INSERT INTO pg_amproc (amopclaid, amproc, amprocnum)
SELECT opcl.oid, pro.oid, 3
FROM pg_opclass opcl, pg_proc pro
WHERE opcname = 'gist_timestamp_ops'
and proname = 'gts_compress';
INSERT INTO pg_amproc (amopclaid, amproc, amprocnum)
SELECT opcl.oid, pro.oid, 4
FROM pg_opclass opcl, pg_proc pro
WHERE opcname = 'gist_timestamp_ops'
and proname = 'btree_decompress';
INSERT INTO pg_amproc (amopclaid, amproc, amprocnum)
SELECT opcl.oid, pro.oid, 5
FROM pg_opclass opcl, pg_proc pro
WHERE opcname = 'gist_timestamp_ops'
and proname = 'gts_penalty';
INSERT INTO pg_amproc (amopclaid, amproc, amprocnum)
SELECT opcl.oid, pro.oid, 6
FROM pg_opclass opcl, pg_proc pro
WHERE opcname = 'gist_timestamp_ops'
and proname = 'gts_picksplit';
INSERT INTO pg_amproc (amopclaid, amproc, amprocnum)
SELECT opcl.oid, pro.oid, 7
FROM pg_opclass opcl, pg_proc pro
WHERE opcname = 'gist_timestamp_ops'
and proname = 'gts_same';
end transaction;

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1000
contrib/btree_gist/data/test_btree_ts.data Normal file
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39
contrib/btree_gist/expected/btree_gist.out Normal file
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--
-- first, define the datatype. Turn off echoing so that expected file
-- does not depend on contents of seg.sql.
--
\set ECHO none
create table inttmp (b int4);
\copy inttmp from 'data/test_btree.data'
create table tstmp ( t datetime );
\copy tstmp from 'data/test_btree_ts.data'
-- without idx
select count(*) from inttmp where b <=10;
count
-------
11
(1 row)
select count(*) from tstmp where t < '2001-05-29 08:33:09+04';
count
-------
7
(1 row)
-- create idx
create index aaaidx on inttmp using gist ( b );
create index tsidx on tstmp using gist ( t );
--with idx
set enable_seqscan=off;
select count(*) from inttmp where b <=10;
count
-------
11
(1 row)
select count(*) from tstmp where t < '2001-05-29 08:33:09+04';
count
-------
7
(1 row)

36
contrib/btree_gist/sql/btree_gist.sql Normal file
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--
-- first, define the datatype. Turn off echoing so that expected file
-- does not depend on contents of seg.sql.
--
\set ECHO none
\i btree_gist.sql
\set ECHO all
create table inttmp (b int4);
\copy inttmp from 'data/test_btree.data'
create table tstmp ( t datetime );
\copy tstmp from 'data/test_btree_ts.data'
-- without idx
select count(*) from inttmp where b <=10;
select count(*) from tstmp where t < '2001-05-29 08:33:09+04';
-- create idx
create index aaaidx on inttmp using gist ( b );
create index tsidx on tstmp using gist ( t );
--with idx
set enable_seqscan=off;
select count(*) from inttmp where b <=10;
select count(*) from tstmp where t < '2001-05-29 08:33:09+04';