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Commit4fe8ba6

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committed
Fix bug corrupting query in gist consistent function.
Thank to Mario Weilguni <mweilguni@sime.com> to discover a bug.
1 parentc713683 commit4fe8ba6

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3 files changed

+19
-3
lines changed

3 files changed

+19
-3
lines changed

‎contrib/ltree/_ltree_gist.c‎

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -580,5 +580,6 @@ _ltree_consistent(PG_FUNCTION_ARGS)
580580
/* internal error */
581581
elog(ERROR,"unrecognized StrategyNumber: %d",strategy);
582582
}
583+
PG_FREE_IF_COPY(query,1);
583584
PG_RETURN_BOOL(res);
584585
}

‎contrib/ltree/ltree.h‎

Lines changed: 4 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,4 @@
1-
/* $PostgreSQL: pgsql/contrib/ltree/ltree.h,v 1.15 2006/03/1104:38:29 momjian Exp $ */
1+
/* $PostgreSQL: pgsql/contrib/ltree/ltree.h,v 1.16 2006/07/1116:00:44 teodor Exp $ */
22

33
#ifndef__LTREE_H__
44
#define__LTREE_H__
@@ -163,8 +163,11 @@ bool compare_subnode(ltree_level * t, char *q, int len,
163163
ltree*lca_inner(ltree**a,intlen);
164164

165165
#definePG_GETARG_LTREE(x)((ltree*)DatumGetPointer(PG_DETOAST_DATUM(PG_GETARG_DATUM(x))))
166+
#definePG_GETARG_LTREE_COPY(x)((ltree*)DatumGetPointer(PG_DETOAST_DATUM_COPY(PG_GETARG_DATUM(x))))
166167
#definePG_GETARG_LQUERY(x) ((lquery*)DatumGetPointer(PG_DETOAST_DATUM(PG_GETARG_DATUM(x))))
168+
#definePG_GETARG_LQUERY_COPY(x) ((lquery*)DatumGetPointer(PG_DETOAST_DATUM_COPY(PG_GETARG_DATUM(x))))
167169
#definePG_GETARG_LTXTQUERY(x) ((ltxtquery*)DatumGetPointer(PG_DETOAST_DATUM(PG_GETARG_DATUM(x))))
170+
#definePG_GETARG_LTXTQUERY_COPY(x) ((ltxtquery*)DatumGetPointer(PG_DETOAST_DATUM_COPY(PG_GETARG_DATUM(x))))
168171

169172
/* GiST support for ltree */
170173

‎contrib/ltree/ltree_gist.c‎

Lines changed: 14 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -1,7 +1,7 @@
11
/*
22
* GiST support for ltree
33
* Teodor Sigaev <teodor@stack.net>
4-
* $PostgreSQL: pgsql/contrib/ltree/ltree_gist.c,v 1.15 2006/06/28 11:59:59 teodor Exp $
4+
* $PostgreSQL: pgsql/contrib/ltree/ltree_gist.c,v 1.16 2006/07/11 16:00:44 teodor Exp $
55
*/
66

77
#include"ltree.h"
@@ -627,23 +627,26 @@ Datum
627627
ltree_consistent(PG_FUNCTION_ARGS)
628628
{
629629
GISTENTRY*entry= (GISTENTRY*)PG_GETARG_POINTER(0);
630-
char*query=(char*)DatumGetPointer(PG_DETOAST_DATUM(PG_GETARG_DATUM(1)));
630+
void*query=NULL;
631631
ltree_gist*key= (ltree_gist*)DatumGetPointer(entry->key);
632632
StrategyNumberstrategy= (StrategyNumber)PG_GETARG_UINT16(2);
633633
boolres= false;
634634

635635
switch (strategy)
636636
{
637637
caseBTLessStrategyNumber:
638+
query=PG_GETARG_LTREE(1);
638639
res= (GIST_LEAF(entry)) ?
639640
(ltree_compare((ltree*)query,LTG_NODE(key))>0)
640641
:
641642
(ltree_compare((ltree*)query,LTG_GETLNODE(key)) >=0);
642643
break;
643644
caseBTLessEqualStrategyNumber:
645+
query=PG_GETARG_LTREE(1);
644646
res= (ltree_compare((ltree*)query,LTG_GETLNODE(key)) >=0);
645647
break;
646648
caseBTEqualStrategyNumber:
649+
query=PG_GETARG_LTREE(1);
647650
if (GIST_LEAF(entry))
648651
res= (ltree_compare((ltree*)query,LTG_NODE(key))==0);
649652
else
@@ -654,28 +657,33 @@ ltree_consistent(PG_FUNCTION_ARGS)
654657
);
655658
break;
656659
caseBTGreaterEqualStrategyNumber:
660+
query=PG_GETARG_LTREE(1);
657661
res= (ltree_compare((ltree*)query,LTG_GETRNODE(key)) <=0);
658662
break;
659663
caseBTGreaterStrategyNumber:
664+
query=PG_GETARG_LTREE(1);
660665
res= (GIST_LEAF(entry)) ?
661666
(ltree_compare((ltree*)query,LTG_GETRNODE(key))<0)
662667
:
663668
(ltree_compare((ltree*)query,LTG_GETRNODE(key)) <=0);
664669
break;
665670
case10:
671+
query=PG_GETARG_LTREE_COPY(1);
666672
res= (GIST_LEAF(entry)) ?
667673
inner_isparent((ltree*)query,LTG_NODE(key))
668674
:
669675
gist_isparent(key, (ltree*)query);
670676
break;
671677
case11:
678+
query=PG_GETARG_LTREE_COPY(1);
672679
res= (GIST_LEAF(entry)) ?
673680
inner_isparent(LTG_NODE(key), (ltree*)query)
674681
:
675682
gist_ischild(key, (ltree*)query);
676683
break;
677684
case12:
678685
case13:
686+
query=PG_GETARG_LQUERY(1);
679687
if (GIST_LEAF(entry))
680688
res=DatumGetBool(DirectFunctionCall2(ltq_regex,
681689
PointerGetDatum(LTG_NODE(key)),
@@ -686,6 +694,7 @@ ltree_consistent(PG_FUNCTION_ARGS)
686694
break;
687695
case14:
688696
case15:
697+
query=PG_GETARG_LQUERY(1);
689698
if (GIST_LEAF(entry))
690699
res=DatumGetBool(DirectFunctionCall2(ltxtq_exec,
691700
PointerGetDatum(LTG_NODE(key)),
@@ -696,6 +705,7 @@ ltree_consistent(PG_FUNCTION_ARGS)
696705
break;
697706
case16:
698707
case17:
708+
query=DatumGetPointer(PG_DETOAST_DATUM(PG_GETARG_DATUM(1)));
699709
if (GIST_LEAF(entry))
700710
res=DatumGetBool(DirectFunctionCall2(lt_q_regex,
701711
PointerGetDatum(LTG_NODE(key)),
@@ -708,5 +718,7 @@ ltree_consistent(PG_FUNCTION_ARGS)
708718
/* internal error */
709719
elog(ERROR,"unrecognized StrategyNumber: %d",strategy);
710720
}
721+
722+
PG_FREE_IF_COPY(query,1);
711723
PG_RETURN_BOOL(res);
712724
}

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