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| author | Simon Riggs <simon@2ndQuadrant.com> | 2010-07-28 05:22:24 +0000 |
|---|---|---|
| committer | Simon Riggs <simon@2ndQuadrant.com> | 2010-07-28 05:22:24 +0000 |
| commit | 2dbbda02e7e688311e161a912a0ce00cde9bb6fc (patch) | |
| tree | adf4f2ca8c477550f19bd6362d0b6fa4ae19f68b /src/backend/commands/alter.c | |
| parent | 133924e13e004db8979424bf5436e21b0a09a069 (diff) | |
| download | postgresql-2dbbda02e7e688311e161a912a0ce00cde9bb6fc.tar.gz postgresql-2dbbda02e7e688311e161a912a0ce00cde9bb6fc.zip | |
Reduce lock levels of CREATE TRIGGER and some ALTER TABLE, CREATE RULE actions.
Avoid hard-coding lockmode used for many altering DDL commands, allowing easier
future changes of lock levels. Implementation of initial analysis on DDL
sub-commands, so that many lock levels are now at ShareUpdateExclusiveLock or
ShareRowExclusiveLock, allowing certain DDL not to block reads/writes.
First of number of planned changes in this area; additional docs required
when full project complete.
Diffstat (limited to 'src/backend/commands/alter.c')
| -rw-r--r-- | src/backend/commands/alter.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/backend/commands/alter.c b/src/backend/commands/alter.c index cecdfa5c6d4..edf05b6eaa3 100644 --- a/src/backend/commands/alter.c +++ b/src/backend/commands/alter.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/commands/alter.c,v 1.36 2010/06/13 17:43:12 rhaas Exp $ + * $PostgreSQL: pgsql/src/backend/commands/alter.c,v 1.37 2010/07/28 05:22:24 sriggs Exp $ * *------------------------------------------------------------------------- */ @@ -190,7 +190,7 @@ ExecAlterObjectSchemaStmt(AlterObjectSchemaStmt *stmt) case OBJECT_VIEW: CheckRelationOwnership(stmt->relation, true); AlterTableNamespace(stmt->relation, stmt->newschema, - stmt->objectType); + stmt->objectType, AccessExclusiveLock); break; case OBJECT_TYPE: |