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Add vacuum_freeze_table_age GUC option, to control when VACUUM should

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ignore the visibility map and scan the whole table, to advance
relfrozenxid.
This commit is contained in:
Heikki Linnakangas
2009-01-16 13:27:24 +00:00
parent 19afb4e805
commit 6587818542
16 changed files with 170 additions and 54 deletions
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4
src/include/nodes/parsenodes.h
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@@ -13,7 +13,7 @@
* Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/nodes/parsenodes.h,v 1.387 2009/01/01 17:24:00 momjian Exp $
* $PostgreSQL: pgsql/src/include/nodes/parsenodes.h,v 1.388 2009/01/16 13:27:24 heikki Exp $
*
*-------------------------------------------------------------------------
*/
@@ -2155,8 +2155,8 @@ typedef struct VacuumStmt
bool full; /* do FULL (non-concurrent) vacuum */
bool analyze; /* do ANALYZE step */
bool verbose; /* print progress info */
bool scan_all; /* force scan of all pages */
int freeze_min_age; /* min freeze age, or -1 to use default */
int freeze_table_age; /* age at which to scan whole table */
RangeVar *relation; /* single table to process, or NULL */
List *va_cols; /* list of column names, or NIL for all */
} VacuumStmt;