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Complain politely about access temp/unlogged tables during recovery.

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This has never been supported, but we previously let md.c issue the
complaint for us at whatever point we tried to examine the backing file.
Now we print a nicer error message.

Per bug #6041, reported by Emanuel, and extensive discussion with Tom
Lane over where to put the check.
This commit is contained in:
Robert Haas
2011-06-07 22:12:44 -04:00
parent 135a507991
commit 16925c1e1f
1 changed files with 6 additions and 0 deletions
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6
src/backend/optimizer/util/plancat.c
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@ -90,6 +90,12 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent,
*/ */
relation = heap_open(relationObjectId, NoLock); relation = heap_open(relationObjectId, NoLock);
/* Temporary and unlogged relations are inaccessible during recovery. */
if (!RelationNeedsWAL(relation) && RecoveryInProgress())
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("cannot access temporary or unlogged relations during recovery")));
rel->min_attr = FirstLowInvalidHeapAttributeNumber + 1; rel->min_attr = FirstLowInvalidHeapAttributeNumber + 1;
rel->max_attr = RelationGetNumberOfAttributes(relation); rel->max_attr = RelationGetNumberOfAttributes(relation);
rel->reltablespace = RelationGetForm(relation)->reltablespace; rel->reltablespace = RelationGetForm(relation)->reltablespace;