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Changed TOAST relations to have relkind RELKIND_TOASTVALUE.

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Special handling of TOAST relations during VACUUM. TOAST relations
are vacuumed while the lock on the master table is still active.
The ANALYZE flag doesn't propagate to their vacuuming because the
toaster access routines allways use index access ignoring stats, so
why compute them at all.

Protection of TOAST relations against normal INSERT/UPDATE/DELETE
while offering SELECT for debugging purposes.

Jan
This commit is contained in:
Jan Wieck
2000-07-05 16:17:43 +00:00
parent 01e1d8fa9a
commit 6534444d19
4 changed files with 75 additions and 17 deletions
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6
src/backend/executor/execMain.c
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@ -27,7 +27,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/executor/execMain.c,v 1.120 2000/07/05 13:22:25 wieck Exp $
* $Header: /cvsroot/pgsql/src/backend/executor/execMain.c,v 1.121 2000/07/05 16:17:43 wieck Exp $
*
*-------------------------------------------------------------------------
*/
@ -720,6 +720,10 @@ InitPlan(CmdType operation, Query *parseTree, Plan *plan, EState *estate)
elog(ERROR, "You can't change sequence relation %s",
RelationGetRelationName(resultRelationDesc));
if (resultRelationDesc->rd_rel->relkind == RELKIND_TOASTVALUE)
elog(ERROR, "You can't change toast relation %s",
RelationGetRelationName(resultRelationDesc));
resultRelationInfo = makeNode(RelationInfo);
resultRelationInfo->ri_RangeTableIndex = resultRelationIndex;
resultRelationInfo->ri_RelationDesc = resultRelationDesc;