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Fix ginint4_queryextract() to actually do what it was intended to do for an 

unsatisfiable query, such as indexcol && empty_array.  It should return -1
to tell GIN no scan is required; but silly typo disabled the logic for that,
resulting in unnecessary "GIN indexes do not support whole-index scans" error.
Per bug report from Jeff Trout.

Back-patch to 8.3 where the logic was introduced.
This commit is contained in:
Tom Lane 2010-03-25 15:50:10 +00:00
parent be8cebc717
commit 5ceb13c8a1
1 changed files with 2 additions and 2 deletions
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4
contrib/intarray/_int_gin.c
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@ -1,5 +1,5 @@
/*
* $PostgreSQL: pgsql/contrib/intarray/_int_gin.c,v 1.10 2009/06/11 14:48:51 momjian Exp $
* $PostgreSQL: pgsql/contrib/intarray/_int_gin.c,v 1.11 2010/03/25 15:50:10 tgl Exp $
*/
#include "postgres.h"
@ -65,7 +65,7 @@ ginint4_queryextract(PG_FUNCTION_ARGS)
}
}
if (nentries == 0)
if (*nentries == 0)
{
switch (strategy)
{