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/*-------------------------------------------------------------------------
*
* internal.h
* Definitions required throughout the query optimizer.
*
*
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: internal.h,v 1.27 2000/06/15 03:32:51 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef INTERNAL_H
#define INTERNAL_H
/*
* ---------- SHARED MACROS
*
* Macros common to modules for creating, accessing, and modifying
* query tree and query plan components.
* Shared with the executor.
*
*/
/*
* Size estimates
*
*/
/* The cost of sequentially scanning a materialized temporary relation
*/
#define _NONAME_SCAN_COST_ 10
/* The number of pages and tuples in a materialized relation
*/
#define _NONAME_RELATION_PAGES_ 1
#define _NONAME_RELATION_TUPLES_ 10
/* The length of a variable-length field in bytes (stupid estimate...)
*/
#define _DEFAULT_ATTRIBUTE_WIDTH_ 12
/*
* Flags and identifiers
*
*/
/* Identifier for (sort) temp relations */
/* used to be -1 */
#define _NONAME_RELATION_ID_ InvalidOid
#endif /* INTERNAL_H */
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