database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-06-14 18:42:34 +03:00
Code Activity

Disallow VACUUM, ANALYZE, TRUNCATE on temp tables belonging to other

Browse Source 
backends.  Given that temp tables now store data locally in the local
buffer manager, these things are not going to work safely.
This commit is contained in:
Tom Lane
2002-09-23 20:43:41 +00:00
parent c99f820053
commit 5fa3418304
5 changed files with 64 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
src/backend/commands/tablecmds.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/tablecmds.c,v 1.43 2002/09/22 19:42:50 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/tablecmds.c,v 1.44 2002/09/23 20:43:40 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -367,6 +367,7 @@ TruncateRelation(const RangeVar *relation)
RelationGetRelationName(rel));
}
/* Permissions checks */
if (!allowSystemTableMods && IsSystemRelation(rel))
elog(ERROR, "TRUNCATE cannot be used on system tables. '%s' is a system table",
RelationGetRelationName(rel));
@ -374,6 +375,13 @@ TruncateRelation(const RangeVar *relation)
if (!pg_class_ownercheck(relid, GetUserId()))
aclcheck_error(ACLCHECK_NOT_OWNER, RelationGetRelationName(rel));
/*
* Don't allow truncate on temp tables of other backends ... their
* local buffer manager is not going to cope.
*/
if (isOtherTempNamespace(RelationGetNamespace(rel)))
elog(ERROR, "TRUNCATE cannot be used on temp tables of other processes");
/*
* Don't allow truncate on tables which are referenced by foreign keys
*/