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Commite952ae1

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Fix longstanding bug found by Atsushi Ogawa: _bt_check_unique would mark

the wrong buffer dirty when trying to kill a dead index entry that's ona page after the one it started on. No risk of data corruption, justinefficiency, but still a bug.

1 parentfa72121 commite952ae1Copy full SHA for e952ae1

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src/backend/access/nbtree
- nbtinsert.c

1 file changed

-2

lines changed

`‎src/backend/access/nbtree/nbtinsert.c‎`

Lines changed: 5 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -8,7 +8,7 @@`
`8`	`8`	`*`
`9`	`9`	`*`
`10`	`10`	`* IDENTIFICATION`
`11`		`- * $PostgreSQL: pgsql/src/backend/access/nbtree/nbtinsert.c,v 1.125 2005/09/24 22:54:35 tgl Exp $`
	`11`	`+ * $PostgreSQL: pgsql/src/backend/access/nbtree/nbtinsert.c,v 1.126 2005/10/12 17:18:03 tgl Exp $`
`12`	`12`	`*`
`13`	`13`	`*-------------------------------------------------------------------------`
`14`	`14`	`*/`
`@@ -261,7 +261,10 @@ _bt_check_unique(Relation rel, BTItem btitem, Relation heapRel,`
`261`	`261`	`hbuffer)==HEAPTUPLE_DEAD)`
`262`	`262`	`{`
`263`	`263`	`curitemid->lp_flags \|=LP_DELETE;`
`264`		`-SetBufferCommitInfoNeedsSave(buf);`
	`264`	`+if (nbuf!=InvalidBuffer)`
	`265`	`+SetBufferCommitInfoNeedsSave(nbuf);`
	`266`	`+else`
	`267`	`+SetBufferCommitInfoNeedsSave(buf);`
`265`	`268`	`}`
`266`	`269`	`LockBuffer(hbuffer,BUFFER_LOCK_UNLOCK);`
`267`	`270`	`}`

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Commite952ae1

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`‎src/backend/access/nbtree/nbtinsert.c‎`

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