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Ensure that CLUSTER leaves the toast table and index with consistent names,

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by renaming the new copies after the catalog games.
This commit is contained in:
Alvaro Herrera 2008-10-14 17:19:50 +00:00
parent a303e4dc43
commit c5eabafb6a
1 changed files with 32 additions and 1 deletions
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33
src/backend/commands/cluster.c
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@ -11,7 +11,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/commands/cluster.c,v 1.177 2008/06/19 00:46:04 alvherre Exp $
* $PostgreSQL: pgsql/src/backend/commands/cluster.c,v 1.178 2008/10/14 17:19:50 alvherre Exp $
*
*-------------------------------------------------------------------------
*/
@ -29,6 +29,7 @@
#include "catalog/index.h"
#include "catalog/indexing.h"
#include "catalog/namespace.h"
#include "catalog/pg_namespace.h"
#include "catalog/toasting.h"
#include "commands/cluster.h"
#include "commands/tablecmds.h"
@ -568,6 +569,7 @@ rebuild_relation(Relation OldHeap, Oid indexOid)
char NewHeapName[NAMEDATALEN];
TransactionId frozenXid;
ObjectAddress object;
Relation newrel;
/* Mark the correct index as clustered */
mark_index_clustered(OldHeap, indexOid);
@ -622,6 +624,35 @@ rebuild_relation(Relation OldHeap, Oid indexOid)
* because reindex_relation does it.
*/
reindex_relation(tableOid, false);
/*
* At this point, everything is kosher except that the toast table's name
* corresponds to the temporary table. The name is irrelevant to
* the backend because it's referenced by OID, but users looking at the
* catalogs could be confused. Rename it to prevent this problem.
*
* Note no lock required on the relation, because we already hold an
* exclusive lock on it.
*/
newrel = heap_open(tableOid, NoLock);
if (OidIsValid(newrel->rd_rel->reltoastrelid))
{
char NewToastName[NAMEDATALEN];
Relation toastrel;
/* rename the toast table ... */
snprintf(NewToastName, NAMEDATALEN, "pg_toast_%u", tableOid);
RenameRelationInternal(newrel->rd_rel->reltoastrelid, NewToastName,
PG_TOAST_NAMESPACE);
/* ... and its index too */
toastrel = relation_open(newrel->rd_rel->reltoastrelid, AccessShareLock);
snprintf(NewToastName, NAMEDATALEN, "pg_toast_%u_index", tableOid);
RenameRelationInternal(toastrel->rd_rel->reltoastidxid, NewToastName,
PG_TOAST_NAMESPACE);
relation_close(toastrel, AccessShareLock);
}
relation_close(newrel, NoLock);
}
/*