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Implement ALTER TABLE .. SET LOGGED / UNLOGGED

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This enables changing permanent (logged) tables to unlogged and
vice-versa.

(Docs for ALTER TABLE / SET TABLESPACE got shuffled in an order that
hopefully makes more sense than the original.)

Author: Fabrízio de Royes Mello
Reviewed by: Christoph Berg, Andres Freund, Thom Brown
Some tweaking by Álvaro Herrera
This commit is contained in:
Alvaro Herrera
2014-08-22 14:27:00 -04:00
parent 01d15a2677
commit f41872d0c1
11 changed files with 472 additions and 55 deletions
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9
src/backend/commands/matview.c
View File

@ -147,6 +147,7 @@ ExecRefreshMatView(RefreshMatViewStmt *stmt, const char *queryString,
DestReceiver *dest;
bool concurrent;
LOCKMODE lockmode;
char relpersistence;
/* Determine strength of lock needed. */
concurrent = stmt->concurrent;
@ -233,9 +234,15 @@ ExecRefreshMatView(RefreshMatViewStmt *stmt, const char *queryString,
/* Concurrent refresh builds new data in temp tablespace, and does diff. */
if (concurrent)
{
tableSpace = GetDefaultTablespace(RELPERSISTENCE_TEMP);
relpersistence = RELPERSISTENCE_TEMP;
}
else
{
tableSpace = matviewRel->rd_rel->reltablespace;
relpersistence = matviewRel->rd_rel->relpersistence;
}
owner = matviewRel->rd_rel->relowner;
@ -244,7 +251,7 @@ ExecRefreshMatView(RefreshMatViewStmt *stmt, const char *queryString,
* it against access by any other process until commit (by which time it
* will be gone).
*/
OIDNewHeap = make_new_heap(matviewOid, tableSpace, concurrent,
OIDNewHeap = make_new_heap(matviewOid, tableSpace, relpersistence,
ExclusiveLock);
LockRelationOid(OIDNewHeap, AccessExclusiveLock);
dest = CreateTransientRelDestReceiver(OIDNewHeap);