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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 -1to 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.

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contrib/intarray
- _int_gin.c

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`‎contrib/intarray/_int_gin.c`

Lines changed: 2 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -1,5 +1,5 @@`
`1`	`1`	`/*`
`2`		`- * $PostgreSQL: pgsql/contrib/intarray/_int_gin.c,v 1.10 2009/06/11 14:48:51 momjian Exp $`
	`2`	`+ * $PostgreSQL: pgsql/contrib/intarray/_int_gin.c,v 1.11 2010/03/25 15:50:10 tgl Exp $`
`3`	`3`	`*/`
`4`	`4`	`#include"postgres.h"`
`5`	`5`
`@@ -65,7 +65,7 @@ ginint4_queryextract(PG_FUNCTION_ARGS)`
`65`	`65`	`}`
`66`	`66`	`}`
`67`	`67`
`68`		`-if (nentries==0)`
	`68`	`+if (*nentries==0)`
`69`	`69`	`{`
`70`	`70`	`switch (strategy)`
`71`	`71`	`{`

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Commit5ceb13c

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`‎contrib/intarray/_int_gin.c`

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