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Commit6562fa8

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committed
Fixes:
'select distinct on' causes backend to crashsubmitted by: Chris Dunlop chris@onthe.net.au
1 parent9bffaad commit6562fa8

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-4
lines changed

1 file changed

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‎src/backend/executor/nodeUnique.c

Lines changed: 4 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,7 @@
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*
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*
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* IDENTIFICATION
10-
* $Header: /cvsroot/pgsql/src/backend/executor/nodeUnique.c,v 1.1.1.1 1996/07/09 06:21:27 scrappy Exp $
10+
* $Header: /cvsroot/pgsql/src/backend/executor/nodeUnique.c,v 1.2 1996/07/19 06:27:59 scrappy Exp $
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*
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*-------------------------------------------------------------------------
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*/
@@ -124,7 +124,7 @@ ExecUnique(Unique *node)
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125125
if (uniqueAttr) {
126126
tupDesc=ExecGetResultType(uniquestate);
127-
typoutput=typtoout((Oid)tupDesc->attrs[uniqueAttrNum]->atttypid);
127+
typoutput=typtoout((Oid)tupDesc->attrs[uniqueAttrNum-1]->atttypid);
128128
}
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130130
/* ----------------
@@ -174,8 +174,8 @@ ExecUnique(Unique *node)
174174
if (isNull1==isNull2) {
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if (isNull1)/* both are null, they are equal */
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continue;
177-
val1=fmgr(typoutput,attr1,gettypelem(tupDesc->attrs[uniqueAttrNum]->atttypid));
178-
val2=fmgr(typoutput,attr2,gettypelem(tupDesc->attrs[uniqueAttrNum]->atttypid));
177+
val1=fmgr(typoutput,attr1,gettypelem(tupDesc->attrs[uniqueAttrNum-1]->atttypid));
178+
val2=fmgr(typoutput,attr2,gettypelem(tupDesc->attrs[uniqueAttrNum-1]->atttypid));
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/* now, val1 and val2 are ascii representations so we can
180180
use strcmp for comparison */
181181
if (strcmp(val1,val2)==0)/* they are equal */

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