Prevent autovacuum from zeroing damaged pages.

bmomjian · bmomjian · commit 4c63b1f88efc · 2006-03-06T05:14:19.000Z
diff --git a/src/backend/postmaster/autovacuum.c b/src/backend/postmaster/autovacuum.c
@@ -10,7 +10,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/postmaster/autovacuum.c,v 1.12 2006/03/05 15:58:35 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/postmaster/autovacuum.c,v 1.13 2006/03/06 05:14:19 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -125,6 +125,9 @@ autovac_start(void)
 	if (!AutoVacuumingActive())
 		return 0;
 
+	/* Even if zero_damaged_pages is true, we don't want autovacuum zeroing. */
+	zero_damaged_pages = false;
+
 	/*
 	 * Do nothing if too soon since last autovacuum exit.  This limits how
 	 * often the daemon runs.  Since the time per iteration can be quite

Original file line number	Diff line number	Diff line change
`@@ -10,7 +10,7 @@`
`10`	`10`	`*`
`11`	`11`	`*`
`12`	`12`	`* IDENTIFICATION`
`13`		`- * $PostgreSQL: pgsql/src/backend/postmaster/autovacuum.c,v 1.12 2006/03/05 15:58:35 momjian Exp $`
	`13`	`+ * $PostgreSQL: pgsql/src/backend/postmaster/autovacuum.c,v 1.13 2006/03/06 05:14:19 momjian Exp $`
`14`	`14`	`*`
`15`	`15`	`*-------------------------------------------------------------------------`
`16`	`16`	`*/`
`@@ -125,6 +125,9 @@ autovac_start(void)`
`125`	`125`	`if (!AutoVacuumingActive())`
`126`	`126`	`return 0;`
`127`	`127`
	`128`	`+ /* Even if zero_damaged_pages is true, we don't want autovacuum zeroing. */`
	`129`	`+ zero_damaged_pages = false;`
	`130`	`+`
`128`	`131`	`/*`
`129`	`132`	`* Do nothing if too soon since last autovacuum exit. This limits how`
`130`	`133`	`* often the daemon runs. Since the time per iteration can be quite`