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/*-------------------------------------------------------------------------
*
* prep.h
* prototypes for files in optimizer/prep/
*
*
* Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/optimizer/prep.h,v 1.58 2007/01/05 22:19:56 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef PREP_H
#define PREP_H
#include "nodes/plannodes.h"
#include "nodes/relation.h"
/*
* prototypes for prepjointree.c
*/
extern Node *pull_up_IN_clauses(PlannerInfo *root, Node *node);
extern Node *pull_up_subqueries(PlannerInfo *root, Node *jtnode,
bool below_outer_join, bool append_rel_member);
extern void reduce_outer_joins(PlannerInfo *root);
extern Relids get_relids_in_jointree(Node *jtnode);
extern Relids get_relids_for_join(PlannerInfo *root, int joinrelid);
/*
* prototypes for prepqual.c
*/
extern Expr *canonicalize_qual(Expr *qual);
/*
* prototypes for preptlist.c
*/
extern List *preprocess_targetlist(PlannerInfo *root, List *tlist);
/*
* prototypes for prepunion.c
*/
extern Plan *plan_set_operations(PlannerInfo *root, double tuple_fraction,
List **sortClauses);
extern List *find_all_inheritors(Oid parentrel);
extern void expand_inherited_tables(PlannerInfo *root);
extern Node *adjust_appendrel_attrs(Node *node, AppendRelInfo *appinfo);
extern Relids *adjust_appendrel_attr_needed(RelOptInfo *oldrel,
AppendRelInfo *appinfo,
AttrNumber new_min_attr,
AttrNumber new_max_attr);
#endif /* PREP_H */
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