Commit59f800d

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Mark vacuum_defer_cleanup_age as PGC_POSTMASTER.

Following bug analysis of #7819 by Tom Lane

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Lines changed: 1 addition & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -1998,8 +1998,7 @@ SET ENABLE_SEQSCAN TO OFF;`
`1998`	`1998`	`is measured in terms of number of write transactions occurring on the`
`1999`	`1999`	`primary server, it is difficult to predict just how much additional`
`2000`	`2000`	`grace time will be made available to standby queries.`
`2001`		`- This parameter can only be set in the <filename>postgresql.conf</>`
`2002`		`- file or on the server command line.`
	`2001`	`+ This parameter can only be set at server start.`
`2003`	`2002`	`</para>`
`2004`	`2003`	`</listitem>`
`2005`	`2004`	`</varlistentry>`

Lines changed: 6 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -1631,7 +1631,12 @@ static struct config_int ConfigureNamesInt[] =`
`1631`	`1631`	`},`
`1632`	`1632`
`1633`	`1633`	`{`
`1634`		`-{"vacuum_defer_cleanup_age",PGC_SIGHUP,WAL_REPLICATION,`
	`1634`	`+/*`
	`1635`	`+ * Setting this to a higher value without restarting postmaster`
	`1636`	`+ * can cause various bugs in TOAST object removal, CLUSTER and`
	`1637`	`+ * possibly other places, so this must be changed only on restart.`
	`1638`	`+ */`
	`1639`	`+{"vacuum_defer_cleanup_age",PGC_POSTMASTER,WAL_REPLICATION,`
`1635`	`1640`	`gettext_noop("Number of transactions by which VACUUM and HOT cleanup should be deferred, if any."),`
`1636`	`1641`	`NULL`
`1637`	`1642`	`},`

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