Remove duplicate code in DefineOpFamily().

The code was probably meant to be this way all along, since the subroutine
CreateOpFamily previously had only one caller.  But it wasn't.

KaiGai Kohei

src/backend/commands/opclasscmds.c

@@ -9,7 +9,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/commands/opclasscmds.c,v 1.68 2010/07/06 19:18:56 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/commands/opclasscmds.c,v 1.69 2010/07/16 00:13:23 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -640,16 +640,9 @@ DefineOpFamily(CreateOpFamilyStmt *stmt)
 {
 	char	   *opfname;		/* name of opfamily we're creating */
 	Oid			amoid,			/* our AM's oid */
-				namespaceoid,	/* namespace to create opfamily in */
-				opfamilyoid;	/* oid of opfamily we create */
-	Relation	rel;
+				namespaceoid;	/* namespace to create opfamily in */
 	HeapTuple	tup;
-	Datum		values[Natts_pg_opfamily];
-	bool		nulls[Natts_pg_opfamily];
 	AclResult	aclresult;
-	NameData	opfName;
-	ObjectAddress myself,
-				referenced;
 
 	/* Convert list of names to a name and namespace */
 	namespaceoid = QualifiedNameGetCreationNamespace(stmt->opfamilyname,
@@ -678,68 +671,14 @@ DefineOpFamily(CreateOpFamilyStmt *stmt)
 	/*
 	 * Currently, we require superuser privileges to create an opfamily. See
 	 * comments in DefineOpClass.
-	 *
-	 * XXX re-enable NOT_USED code sections below if you remove this test.
 	 */
 	if (!superuser())
 		ereport(ERROR,
 				(errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
 				 errmsg("must be superuser to create an operator family")));
 
-	rel = heap_open(OperatorFamilyRelationId, RowExclusiveLock);
-
-	/*
-	 * Make sure there is no existing opfamily of this name (this is just to
-	 * give a more friendly error message than "duplicate key").
-	 */
-	if (SearchSysCacheExists3(OPFAMILYAMNAMENSP,
-							  ObjectIdGetDatum(amoid),
-							  CStringGetDatum(opfname),
-							  ObjectIdGetDatum(namespaceoid)))
-		ereport(ERROR,
-				(errcode(ERRCODE_DUPLICATE_OBJECT),
-				 errmsg("operator family \"%s\" for access method \"%s\" already exists",
-						opfname, stmt->amname)));
-
-	/*
-	 * Okay, let's create the pg_opfamily entry.
-	 */
-	memset(values, 0, sizeof(values));
-	memset(nulls, false, sizeof(nulls));
-
-	values[Anum_pg_opfamily_opfmethod - 1] = ObjectIdGetDatum(amoid);
-	namestrcpy(&opfName, opfname);
-	values[Anum_pg_opfamily_opfname - 1] = NameGetDatum(&opfName);
-	values[Anum_pg_opfamily_opfnamespace - 1] = ObjectIdGetDatum(namespaceoid);
-	values[Anum_pg_opfamily_opfowner - 1] = ObjectIdGetDatum(GetUserId());
-
-	tup = heap_form_tuple(rel->rd_att, values, nulls);
-
-	opfamilyoid = simple_heap_insert(rel, tup);
-
-	CatalogUpdateIndexes(rel, tup);
-
-	heap_freetuple(tup);
-
-	/*
-	 * Create dependencies for the opfamily proper.  Note: we do not create a
-	 * dependency link to the AM, because we don't currently support DROP
-	 * ACCESS METHOD.
-	 */
-	myself.classId = OperatorFamilyRelationId;
-	myself.objectId = opfamilyoid;
-	myself.objectSubId = 0;
-
-	/* dependency on namespace */
-	referenced.classId = NamespaceRelationId;
-	referenced.objectId = namespaceoid;
-	referenced.objectSubId = 0;
-	recordDependencyOn(&myself, &referenced, DEPENDENCY_NORMAL);
-
-	/* dependency on owner */
-	recordDependencyOnOwner(OperatorFamilyRelationId, opfamilyoid, GetUserId());
-
-	heap_close(rel, RowExclusiveLock);
+	/* Insert pg_opfamily catalog entry */
+	(void) CreateOpFamily(stmt->amname, opfname, namespaceoid, amoid);
 }