/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
/* 
 * Magic oids 
 */

#ifndef PG_MAGIC_OID_H
#define PG_MAGIC_OID_H

/* ----------
 *		Object ID (OID) zero is InvalidOid.
 *
 *		OIDs 1-9999 are reserved for manual assignment (see the files
 *		in src/include/catalog/).
 *
 *		OIDS 10000-16383 are reserved for assignment during initdb
 *		using the OID generator.  (We start the generator at 10000.)
 *
 *		OIDs beginning at 16384 are assigned from the OID generator
 *		during normal multiuser operation.	(We force the generator up to
 *		16384 as soon as we are in normal operation.)
 *
 * The choices of 10000 and 16384 are completely arbitrary, and can be moved
 * if we run low on OIDs in either category.  Changing the macros below
 * should be sufficient to do this.
 *
 * NOTE: if the OID generator wraps around, we skip over OIDs 0-16383
 * and resume with 16384.  This minimizes the odds of OID conflict, by not
 * reassigning OIDs that might have been assigned during initdb.
 * ----------
 */
#define FirstBootstrapObjectId	10000
#define FirstNormalObjectId	16384

/* reserve a range of 10M for externally imported metadata: 2^32 - 10*2^20 */
#define FirstExternalObjectId UINT_MAX - 10485760 /* 4284481536 */

/*
 * For the time being, we split the OID range so that newly added objects
 * won't conflict between GPDB and GPSQL.  If two merge into one in some day,
 * this boundary will disappear.
 */
#define LowestGPSQLBootstrapObjectId 6112

#endif