postgresql/src/include/executor/nodeIndexscan.h

/*-------------------------------------------------------------------------
 *
 * nodeIndexscan.h
 *
 *
 *
 * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * $PostgreSQL: pgsql/src/include/executor/nodeIndexscan.h,v 1.24 2005/10/15 02:49:44 momjian Exp $
 *
 *-------------------------------------------------------------------------
 */
#ifndef NODEINDEXSCAN_H
#define NODEINDEXSCAN_H

#include "nodes/execnodes.h"

extern int	ExecCountSlotsIndexScan(IndexScan *node);
extern IndexScanState *ExecInitIndexScan(IndexScan *node, EState *estate);
extern TupleTableSlot *ExecIndexScan(IndexScanState *node);
extern void ExecEndIndexScan(IndexScanState *node);
extern void ExecIndexMarkPos(IndexScanState *node);
extern void ExecIndexRestrPos(IndexScanState *node);
extern void ExecIndexReScan(IndexScanState *node, ExprContext *exprCtxt);

/* routines exported to share code with nodeBitmapIndexscan.c */
extern bool ExecIndexBuildScanKeys(PlanState *planstate, List *quals,
					   List *strategies, List *subtypes,
					   ExprState ***runtimeKeyInfo,
					   ScanKey *scanKeys, int *numScanKeys);
extern void ExecIndexEvalRuntimeKeys(ExprContext *econtext,
						 ExprState **run_keys,
						 ScanKey scan_keys,
						 int n_keys);

#endif   /* NODEINDEXSCAN_H */
Postgres95 1.01 Distribution - Virgin Sources 1996-07-09 02:22:35 -04:00			`/*-------------------------------------------------------------------------`
			`*`
Change my-function-name-- to my_function_name, and optimizer renames. 1999-02-13 18:22:53 -05:00			`* nodeIndexscan.h`
Massive commit to run PGINDENT on all .c and .h files. 1997-09-07 01:04:48 -04:00			`*`
Postgres95 1.01 Distribution - Virgin Sources 1996-07-09 02:22:35 -04:00			`*`
			`*`
Tag appropriate files for rc3 Also performed an initial run through of upgrading our Copyright date to extend to 2005 ... first run here was very simple ... change everything where: grep 1996-2004 && the word 'Copyright' ... scanned through the generated list with 'less' first, and after, to make sure that I only picked up the right entries ... 2004-12-31 17:04:05 -05:00			`* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group`
Add: * Portions Copyright (c) 1996-2000, PostgreSQL, Inc to all files copyright Regents of Berkeley. Man, that's a lot of files. 2000-01-26 00:58:53 -05:00			`* Portions Copyright (c) 1994, Regents of the University of California`
Postgres95 1.01 Distribution - Virgin Sources 1996-07-09 02:22:35 -04:00			`*`
Standard pgindent run for 8.1. 2005-10-14 22:49:52 -04:00			`* $PostgreSQL: pgsql/src/include/executor/nodeIndexscan.h,v 1.24 2005/10/15 02:49:44 momjian Exp $`
Postgres95 1.01 Distribution - Virgin Sources 1996-07-09 02:22:35 -04:00			`*`
			`*-------------------------------------------------------------------------`
			`*/`
Massive commit to run PGINDENT on all .c and .h files. 1997-09-07 01:04:48 -04:00			`#ifndef NODEINDEXSCAN_H`
			`#define NODEINDEXSCAN_H`

Phase 1 of read-only-plans project: cause executor state nodes to point to plan nodes, not vice-versa. All executor state nodes now inherit from struct PlanState. Copying of plan trees has been simplified by not storing a list of SubPlans in Plan nodes (eliminating duplicate links). The executor still needs such a list, but it can build it during ExecutorStart since it has to scan the plan tree anyway. No initdb forced since no stored-on-disk structures changed, but you will need a full recompile because of node-numbering changes. 2002-12-05 10:50:39 -05:00			`#include "nodes/execnodes.h"`
Postgres95 1.01 Distribution - Virgin Sources 1996-07-09 02:22:35 -04:00
Used modified version of indent that understands over 100 typedefs. 1997-09-08 17:56:23 -04:00			`extern int ExecCountSlotsIndexScan(IndexScan *node);`
Phase 1 of read-only-plans project: cause executor state nodes to point to plan nodes, not vice-versa. All executor state nodes now inherit from struct PlanState. Copying of plan trees has been simplified by not storing a list of SubPlans in Plan nodes (eliminating duplicate links). The executor still needs such a list, but it can build it during ExecutorStart since it has to scan the plan tree anyway. No initdb forced since no stored-on-disk structures changed, but you will need a full recompile because of node-numbering changes. 2002-12-05 10:50:39 -05:00			`extern IndexScanState ExecInitIndexScan(IndexScan node, EState *estate);`
			`extern TupleTableSlot ExecIndexScan(IndexScanState node);`
			`extern void ExecEndIndexScan(IndexScanState *node);`
			`extern void ExecIndexMarkPos(IndexScanState *node);`
			`extern void ExecIndexRestrPos(IndexScanState *node);`
			`extern void ExecIndexReScan(IndexScanState node, ExprContext exprCtxt);`

Remove support for OR'd indexscans internal to a single IndexScan plan node, as this behavior is now better done as a bitmap OR indexscan. This allows considerable simplification in nodeIndexscan.c itself as well as several planner modules concerned with indexscan plan generation. Also we can improve the sharing of code between regular and bitmap indexscans, since they are now working with nigh-identical Plan nodes. 2005-04-24 21:30:14 -04:00			`/* routines exported to share code with nodeBitmapIndexscan.c */`
			`extern bool ExecIndexBuildScanKeys(PlanState planstate, List quals,`
			`List strategies, List subtypes,`
			`ExprState ***runtimeKeyInfo,`
			`ScanKey scanKeys, int numScanKeys);`
			`extern void ExecIndexEvalRuntimeKeys(ExprContext *econtext,`
Standard pgindent run for 8.1. 2005-10-14 22:49:52 -04:00			`ExprState **run_keys,`
			`ScanKey scan_keys,`
			`int n_keys);`
Remove support for OR'd indexscans internal to a single IndexScan plan node, as this behavior is now better done as a bitmap OR indexscan. This allows considerable simplification in nodeIndexscan.c itself as well as several planner modules concerned with indexscan plan generation. Also we can improve the sharing of code between regular and bitmap indexscans, since they are now working with nigh-identical Plan nodes. 2005-04-24 21:30:14 -04:00
New pgindent run with fixes suggested by Tom. Patch manually reviewed, initdb/regression tests pass. 2001-11-05 12:46:40 -05:00			`#endif /* NODEINDEXSCAN_H */`