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/*-------------------------------------------------------------------------
*
* plancat.h
* prototypes for plancat.c.
*
*
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: plancat.h,v 1.25 2001/10/28 06:26:07 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef PLANCAT_H
#define PLANCAT_H
#include "nodes/relation.h"
extern void get_relation_info(Oid relationObjectId,
bool *hasindex, long *pages, double *tuples);
extern List *find_secondary_indexes(Oid relationObjectId);
extern List *find_inheritance_children(Oid inhparent);
extern bool has_subclass(Oid relationId);
extern bool has_unique_index(RelOptInfo *rel, AttrNumber attno);
extern Selectivity restriction_selectivity(Query *root,
Oid operator,
List *args,
int varRelid);
extern Selectivity join_selectivity(Query *root,
Oid operator,
List *args);
#endif /* PLANCAT_H */
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