src/include/optimizer/prep.h

/*
 * 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.
 */

/*-------------------------------------------------------------------------
 *
 * prep.h
 *	  prototypes for files in optimizer/prep/
 *
 *
 * Portions Copyright (c) 2006-2008, Greenplum inc
 * Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * $PostgreSQL: pgsql/src/include/optimizer/prep.h,v 1.57.2.1 2008/11/11 18:13:54 tgl 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);

extern List *init_list_cteplaninfo(int numCtes);

/*
 * 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(PlannerInfo *root, Node *node, AppendRelInfo *appinfo);

extern Relids *adjust_appendrel_attr_needed(PlannerInfo *root, RelOptInfo *oldrel,
							 AppendRelInfo *appinfo,
							 AttrNumber new_min_attr,
							 AttrNumber new_max_attr);

#endif   /* PREP_H */