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/*-------------------------------------------------------------------------
*
* prep.h
* prototypes for files in optimizer/prep/
*
*
* Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: prep.h,v 1.41 2003/08/04 02:40:14 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef PREP_H
#define PREP_H
#include "nodes/parsenodes.h"
#include "nodes/plannodes.h"
#include "nodes/relation.h"
/*
* prototypes for prepjointree.c
*/
extern int from_collapse_limit;
extern int join_collapse_limit;
extern Node *pull_up_IN_clauses(Query *parse, Node *node);
extern Node *pull_up_subqueries(Query *parse, Node *jtnode,
bool below_outer_join);
extern void reduce_outer_joins(Query *parse);
extern Node *simplify_jointree(Query *parse, Node *jtnode);
extern Relids get_relids_in_jointree(Node *jtnode);
extern Relids get_relids_for_join(Query *parse, int joinrelid);
/*
* prototypes for prepqual.c
*/
extern List *canonicalize_qual(Expr *qual, bool removeAndFlag);
extern List *cnfify(Expr *qual, bool removeAndFlag);
/*
* prototypes for preptlist.c
*/
extern List *preprocess_targetlist(List *tlist, int command_type,
Index result_relation, List *range_table);
/*
* prototypes for prepunion.c
*/
extern Plan *plan_set_operations(Query *parse);
extern List *find_all_inheritors(Oid parentrel);
extern List *expand_inherited_rtentry(Query *parse, Index rti,
bool dup_parent);
extern Node *adjust_inherited_attrs(Node *node,
Index old_rt_index, Oid old_relid,
Index new_rt_index, Oid new_relid);
#endif /* PREP_H */
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