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Utilize the visibility map in autovacuum, too. There was an oversight in

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the visibility map patch that because autovacuum always sets
VacuumStmt->freeze_min_age, visibility map was never used for autovacuum,
only for manually launched vacuums. This patch introduces a new scan_all
field to VacuumStmt, indicating explicitly whether the visibility map
should be used, or the whole relation should be scanned, to advance
relfrozenxid. Anti-wraparound vacuums still need to scan all pages.
This commit is contained in:
Heikki Linnakangas
2008-12-04 11:42:24 +00:00
parent 69b3383cfb
commit 7537f52a00
6 changed files with 14 additions and 14 deletions
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3
src/backend/nodes/copyfuncs.c
View File

@ -15,7 +15,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/nodes/copyfuncs.c,v 1.413 2008/11/24 08:46:03 petere Exp $
* $PostgreSQL: pgsql/src/backend/nodes/copyfuncs.c,v 1.414 2008/12/04 11:42:23 heikki Exp $
*
*-------------------------------------------------------------------------
*/
@ -2771,6 +2771,7 @@ _copyVacuumStmt(VacuumStmt *from)
COPY_SCALAR_FIELD(analyze);
COPY_SCALAR_FIELD(verbose);
COPY_SCALAR_FIELD(freeze_min_age);
COPY_SCALAR_FIELD(scan_all);
COPY_NODE_FIELD(relation);
COPY_NODE_FIELD(va_cols);

3
src/backend/nodes/equalfuncs.c
View File

@ -22,7 +22,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/nodes/equalfuncs.c,v 1.338 2008/11/24 08:46:03 petere Exp $
* $PostgreSQL: pgsql/src/backend/nodes/equalfuncs.c,v 1.339 2008/12/04 11:42:24 heikki Exp $
*
*-------------------------------------------------------------------------
*/
@ -1436,6 +1436,7 @@ _equalVacuumStmt(VacuumStmt *a, VacuumStmt *b)
COMPARE_SCALAR_FIELD(analyze);
COMPARE_SCALAR_FIELD(verbose);
COMPARE_SCALAR_FIELD(freeze_min_age);
COMPARE_SCALAR_FIELD(scan_all);
COMPARE_NODE_FIELD(relation);
COMPARE_NODE_FIELD(va_cols);