Remove some unnecessary conversion work in build_regtype_array().

src/backend/commands/prepare.c

@@ -10,7 +10,7 @@
  * Copyright (c) 2002-2007, PostgreSQL Global Development Group
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/commands/prepare.c,v 1.67 2007/01/05 22:19:26 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/commands/prepare.c,v 1.68 2007/01/28 19:05:35 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -781,12 +781,7 @@ build_regtype_array(List *oid_list)
 	i = 0;
 	foreach(lc, oid_list)
 	{
-		Oid			oid;
-		Datum		oid_str;
-
-		oid = lfirst_oid(lc);
-		oid_str = DirectFunctionCall1(oidout, ObjectIdGetDatum(oid));
-		tmp_ary[i++] = DirectFunctionCall1(regtypein, oid_str);
+		tmp_ary[i++] = ObjectIdGetDatum(lfirst_oid(lc));
 	}
 
 	/* XXX: this hardcodes assumptions about the regtype type */