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Support rewritten-based full vacuum as VACUUM FULL. Traditional

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VACUUM FULL was renamed to VACUUM FULL INPLACE. Also added a new
option -i, --inplace for vacuumdb to perform FULL INPLACE vacuuming.

Since the new VACUUM FULL uses CLUSTER infrastructure, we cannot
use it for system tables. VACUUM FULL for system tables always
fall back into VACUUM FULL INPLACE silently.

Itagaki Takahiro, reviewed by Jeff Davis and Simon Riggs.
This commit is contained in:
Itagaki Takahiro
2010-01-06 05:31:14 +00:00
parent 28f6cab61a
commit 946cf229e8
11 changed files with 406 additions and 133 deletions
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27
src/backend/commands/vacuum.c
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@@ -13,7 +13,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/commands/vacuum.c,v 1.402 2010/01/02 16:57:40 momjian Exp $
* $PostgreSQL: pgsql/src/backend/commands/vacuum.c,v 1.403 2010/01/06 05:31:13 itagaki Exp $
*
*-------------------------------------------------------------------------
*/
@@ -29,10 +29,12 @@
#include "access/visibilitymap.h"
#include "access/xact.h"
#include "access/xlog.h"
#include "catalog/catalog.h"
#include "catalog/namespace.h"
#include "catalog/pg_database.h"
#include "catalog/pg_namespace.h"
#include "catalog/storage.h"
#include "commands/cluster.h"
#include "commands/dbcommands.h"
#include "commands/vacuum.h"
#include "executor/executor.h"
@@ -302,6 +304,8 @@ vacuum(VacuumStmt *vacstmt, Oid relid, bool do_toast,
Assert((vacstmt->options & VACOPT_VACUUM) ||
!(vacstmt->options & (VACOPT_FULL | VACOPT_FREEZE)));
Assert((vacstmt->options & VACOPT_ANALYZE) || vacstmt->va_cols == NIL);
Assert((vacstmt->options & VACOPT_FULL) ||
!(vacstmt->options & VACOPT_INPLACE));
stmttype = (vacstmt->options & VACOPT_VACUUM) ? "VACUUM" : "ANALYZE";
@@ -1178,12 +1182,24 @@ vacuum_rel(Oid relid, VacuumStmt *vacstmt, bool do_toast, bool for_wraparound,
save_nestlevel = NewGUCNestLevel();
/*
* Do the actual work --- either FULL or "lazy" vacuum
* Do the actual work --- either FULL, FULL INPLACE, or "lazy" vacuum.
* We can use only FULL INPLACE vacuum for system relations.
*/
if (vacstmt->options & VACOPT_FULL)
if (!(vacstmt->options & VACOPT_FULL))
heldoff = lazy_vacuum_rel(onerel, vacstmt, vac_strategy, scanned_all);
else if ((vacstmt->options & VACOPT_INPLACE) || IsSystemRelation(onerel))
heldoff = full_vacuum_rel(onerel, vacstmt);
else
heldoff = lazy_vacuum_rel(onerel, vacstmt, vac_strategy, scanned_all);
{
/* close relation before clustering, but hold lock until commit */
relation_close(onerel, NoLock);
onerel = NULL;
cluster_rel(relid, InvalidOid, false,
(vacstmt->options & VACOPT_VERBOSE) != 0,
vacstmt->freeze_min_age, vacstmt->freeze_table_age);
heldoff = false;
}
/* Roll back any GUC changes executed by index functions */
AtEOXact_GUC(false, save_nestlevel);
@@ -1192,7 +1208,8 @@ vacuum_rel(Oid relid, VacuumStmt *vacstmt, bool do_toast, bool for_wraparound,
SetUserIdAndSecContext(save_userid, save_sec_context);
/* all done with this class, but hold lock until commit */
relation_close(onerel, NoLock);
if (onerel)
relation_close(onerel, NoLock);
/*
* Complete the transaction and free all temporary memory used.