DROP ... IF EXISTS for the following cases:

  language, tablespace, trigger, rule, opclass, function, aggregate. operator, and cast.

1 files changed, 16 insertions, 2 deletions

diff --git a/src/backend/commands/aggregatecmds.c b/src/backend/commands/aggregatecmds.c
index 7b954edd381..7fb323a8b87 100644
--- a/src/backend/commands/aggregatecmds.c
+++ b/src/backend/commands/aggregatecmds.c
@@ -9,7 +9,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/commands/aggregatecmds.c,v 1.34 2006/04/15 17:45:33 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/commands/aggregatecmds.c,v 1.35 2006/06/16 20:23:44 adunstan Exp $
  *
  * DESCRIPTION
  *	  The "DefineFoo" routines take the parse tree and pick out the
@@ -211,7 +211,21 @@ RemoveAggregate(RemoveFuncStmt *stmt)
 	ObjectAddress object;
 
 	/* Look up function and make sure it's an aggregate */
-	procOid = LookupAggNameTypeNames(aggName, aggArgs, false);
+	procOid = LookupAggNameTypeNames(aggName, aggArgs, stmt->missing_ok);
+	
+	if (!OidIsValid(procOid))
+	{
+		/* we only get here if stmt->missing_ok is true */
+
+		/* XXX might need better message here */
+
+		ereport(NOTICE,
+				(errmsg("aggregate %s does not exist ... skipping",
+					   stmt->name)));
+		
+
+		return;
+	}
 
 	/*
 	 * Find the function tuple, do permissions and validity checks