postgresql/src/include/optimizer/planmain.h

/*-------------------------------------------------------------------------
 *
 * planmain.h--
 *	  prototypes for various files in optimizer/plan
 *
 *
 * Copyright (c) 1994, Regents of the University of California
 *
 * $Id: planmain.h,v 1.19 1999/02/02 17:46:16 momjian Exp $
 *
 *-------------------------------------------------------------------------
 */
#ifndef PLANMAIN_H
#define PLANMAIN_H

#include "nodes/nodes.h"
#include "nodes/plannodes.h"
#include "nodes/parsenodes.h"
#include "nodes/relation.h"

/*
 * prototypes for plan/planmain.c
 */
extern Plan *query_planner(Query *root,
			  int command_type, List *tlist, List *qual);


/*
 * prototypes for plan/createplan.c
 */
extern Plan *create_plan(Path *best_path);
extern SeqScan *make_seqscan(List *qptlist, List *qpqual, Index scanrelid,
			 Plan *lefttree);
extern Sort *make_sort(List *tlist, Oid tempid, Plan *lefttree,
		  int keycount);
extern Agg *make_agg(List *tlist, Plan *lefttree);
extern Group *make_group(List *tlist, bool tuplePerGroup, int ngrp,
		   AttrNumber *grpColIdx, Sort *lefttree);
extern Unique *make_unique(List *tlist, Plan *lefttree, char *uniqueAttr);

/*
 * prototypes for plan/initsplan.c
 */
extern void init_base_rels_tlist(Query *root, List *tlist);
extern void init_base_rels_qual(Query *root, List *clauses);
extern void init_join_info(List *rel_list);
extern void add_missing_vars_to_tlist(Query *root, List *tlist);

/*
 * prototypes for plan/setrefs.c
 */
extern void set_tlist_references(Plan *plan);
extern List *join_references(List *clauses, List *outer_tlist,
							 List *inner_tlist);
extern List *index_outerjoin_references(List *inner_indxqual,
						   List *outer_tlist, Index inner_relid);
extern List *get_agg_tlist_references(Agg *aggNode);
extern void set_agg_agglist_references(Agg *aggNode);
extern void del_agg_tlist_references(List *tlist);
extern List *check_having_qual_for_aggs(Node *clause,
						   List *subplanTargetList, List *groupClause);
extern List *check_having_qual_for_vars(Node *clause, List *targetlist_so_far);
extern void transformKeySetQuery(Query *origNode);

#endif	 /* PLANMAIN_H */
Postgres95 1.01 Distribution - Virgin Sources 1996-07-09 08:22:35 +02:00			`/*-------------------------------------------------------------------------`
			`*`
			`* planmain.h--`
Massive commit to run PGINDENT on all .c and .h files. 1997-09-07 07:04:48 +02:00			`* prototypes for various files in optimizer/plan`
Postgres95 1.01 Distribution - Virgin Sources 1996-07-09 08:22:35 +02:00			`*`
			`*`
			`* Copyright (c) 1994, Regents of the University of California`
			`*`
Fix create_rule is->as. 1999-02-02 18:46:17 +01:00			`* $Id: planmain.h,v 1.19 1999/02/02 17:46:16 momjian Exp $`
Postgres95 1.01 Distribution - Virgin Sources 1996-07-09 08:22:35 +02:00			`*`
			`*-------------------------------------------------------------------------`
			`*/`
			`#ifndef PLANMAIN_H`
			`#define PLANMAIN_H`

Cleanup up include files. 1997-11-26 02:14:33 +01:00			`#include "nodes/nodes.h"`
			`#include "nodes/plannodes.h"`
			`#include "nodes/parsenodes.h"`
			`#include "nodes/relation.h"`
Postgres95 1.01 Distribution - Virgin Sources 1996-07-09 08:22:35 +02:00
			`/*`
			`* prototypes for plan/planmain.c`
			`*/`
OK, folks, here is the pgindent output. 1998-09-01 06:40:42 +02:00			`extern Plan query_planner(Query root,`
Used modified version of indent that understands over 100 typedefs. 1997-09-08 23:56:23 +02:00			`int command_type, List tlist, List qual);`
Postgres95 1.01 Distribution - Virgin Sources 1996-07-09 08:22:35 +02:00

			`/*`
			`* prototypes for plan/createplan.c`
			`*/`
Used modified version of indent that understands over 100 typedefs. 1997-09-08 23:56:23 +02:00			`extern Plan create_plan(Path best_path);`
OK, folks, here is the pgindent output. 1998-09-01 06:40:42 +02:00			`extern SeqScan make_seqscan(List qptlist, List *qpqual, Index scanrelid,`
Used modified version of indent that understands over 100 typedefs. 1997-09-08 23:56:23 +02:00			`Plan *lefttree);`
OK, folks, here is the pgindent output. 1998-09-01 06:40:42 +02:00			`extern Sort make_sort(List tlist, Oid tempid, Plan *lefttree,`
Massive commit to run PGINDENT on all .c and .h files. 1997-09-07 07:04:48 +02:00			`int keycount);`
Remove Query->qry_aggs and qry_numaggs and replace with Query->hasAggs. Pass List* of Aggregs into executor, and create needed array there. No longer need to double-processs Aggregs with second copy in Query. Fix crash when doing: select sum(x+1) from test where 1 > 0; 1998-01-15 20:00:16 +01:00			`extern Agg make_agg(List tlist, Plan *lefttree);`
OK, folks, here is the pgindent output. 1998-09-01 06:40:42 +02:00			`extern Group make_group(List tlist, bool tuplePerGroup, int ngrp,`
Used modified version of indent that understands over 100 typedefs. 1997-09-08 23:56:23 +02:00			`AttrNumber grpColIdx, Sort lefttree);`
			`extern Unique make_unique(List tlist, Plan lefttree, char uniqueAttr);`
Postgres95 1.01 Distribution - Virgin Sources 1996-07-09 08:22:35 +02:00
			`/*`
			`* prototypes for plan/initsplan.c`
			`*/`
Cleanup optimizer function names and clarify code. 1998-08-10 04:26:40 +02:00			`extern void init_base_rels_tlist(Query root, List tlist);`
			`extern void init_base_rels_qual(Query root, List clauses);`
			`extern void init_join_info(List *rel_list);`
			`extern void add_missing_vars_to_tlist(Query root, List tlist);`
Postgres95 1.01 Distribution - Virgin Sources 1996-07-09 08:22:35 +02:00
			`/*`
			`* prototypes for plan/setrefs.c`
			`*/`
Used modified version of indent that understands over 100 typedefs. 1997-09-08 23:56:23 +02:00			`extern void set_tlist_references(Plan *plan);`
OK, folks, here is the pgindent output. 1998-09-01 06:40:42 +02:00			`extern List join_references(List clauses, List *outer_tlist,`
Fix create_rule is->as. 1999-02-02 18:46:17 +01:00			`List *inner_tlist);`
OK, folks, here is the pgindent output. 1998-09-01 06:40:42 +02:00			`extern List index_outerjoin_references(List inner_indxqual,`
Used modified version of indent that understands over 100 typedefs. 1997-09-08 23:56:23 +02:00			`List *outer_tlist, Index inner_relid);`
Agg/Aggreg cleanup and datetime.sql patch. 1999-01-25 19:02:28 +01:00			`extern List get_agg_tlist_references(Agg aggNode);`
Add typdefs to pgindent run. 1997-09-08 22:59:27 +02:00			`extern void set_agg_agglist_references(Agg *aggNode);`
Fix aggregates on inherited tables. 1997-12-20 08:59:44 +01:00			`extern void del_agg_tlist_references(List *tlist);`
OK, folks, here is the pgindent output. 1998-09-01 06:40:42 +02:00			`extern List check_having_qual_for_aggs(Node clause,`
			`List subplanTargetList, List groupClause);`
1) Queries using the having clause on base tables should work well now. Here some tested features, (examples included in the patch): 1.1) Subselects in the having clause 1.2) Double nested subselects 1.3) Subselects used in the where clause and in the having clause simultaneously 1.4) Union Selects using having 1.5) Indexes on the base relations are used correctly 1.6) Unallowed Queries are prevented (e.g. qualifications in the having clause that belong to the where clause) 1.7) Insert into as select 2) Queries using the having clause on view relations also work but there are some restrictions: 2.1) Create View as Select ... Having ...; using base tables in the select 2.1.1) The Query rewrite system: 2.1.2) Why are only simple queries allowed against a view from 2.1) ? 2.2) Select ... from testview1, testview2, ... having...; 3) Bug in ExecMergeJoin ?? Regards Stefan 1998-07-19 07:49:26 +02:00			`extern List check_having_qual_for_vars(Node clause, List *targetlist_so_far);`
[Part #1: Type: text/plain, Encoding: 7bit, Size: 59] I will be cleaning this up more before the Oct 1 deadline. David Hartwig. AND/OR fix. 1998-09-03 04:34:35 +02:00			`extern void transformKeySetQuery(Query *origNode);`
Postgres95 1.01 Distribution - Virgin Sources 1996-07-09 08:22:35 +02:00
OK, folks, here is the pgindent output. 1998-09-01 06:40:42 +02:00			`#endif /* PLANMAIN_H */`