diff options
| author | Tom Lane <tgl@sss.pgh.pa.us> | 2009-11-20 20:38:12 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2009-11-20 20:38:12 +0000 |
| commit | 7fc0f06221d22632daa3ff8b70919b43e8a242ca (patch) | |
| tree | a2ec73a6256c30ba9cb2d4723868978c5136ba5e /src/backend/tcop/utility.c | |
| parent | 201a45c4fa23c485cf2e14ac9db8064b2c559fdc (diff) | |
Add a WHEN clause to CREATE TRIGGER, allowing a boolean expression to be
checked to determine whether the trigger should be fired.
For BEFORE triggers this is mostly a matter of spec compliance; but for AFTER
triggers it can provide a noticeable performance improvement, since queuing of
a deferred trigger event and re-fetching of the row(s) at end of statement can
be short-circuited if the trigger does not need to be fired.
Takahiro Itagaki, reviewed by KaiGai Kohei.
Diffstat (limited to 'src/backend/tcop/utility.c')
| -rw-r--r-- | src/backend/tcop/utility.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/backend/tcop/utility.c b/src/backend/tcop/utility.c index f0ef9d6406f..42071bfb6c1 100644 --- a/src/backend/tcop/utility.c +++ b/src/backend/tcop/utility.c @@ -10,7 +10,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/tcop/utility.c,v 1.317 2009/11/16 21:32:07 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/tcop/utility.c,v 1.318 2009/11/20 20:38:11 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -939,7 +939,7 @@ ProcessUtility(Node *parsetree, break; case T_CreateTrigStmt: - CreateTrigger((CreateTrigStmt *) parsetree, + CreateTrigger((CreateTrigStmt *) parsetree, queryString, InvalidOid, InvalidOid, NULL, true); break; |