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postgres/src/include/executor/nodeMaterial.h

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Postgres95 1.01 Distribution - Virgin Sources
30 years ago
/*-------------------------------------------------------------------------
*
Change my-function-name-- to my_function_name, and optimizer renames.
27 years ago
* nodeMaterial.h
Massive commit to run PGINDENT on all *.c and *.h files.
29 years ago
*
Postgres95 1.01 Distribution - Virgin Sources
30 years ago
*
*
Update copyright for the year 2010.
16 years ago
* Portions Copyright (c) 1996-2010, 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.
26 years ago
* Portions Copyright (c) 1994, Regents of the University of California
Postgres95 1.01 Distribution - Virgin Sources
30 years ago
*
Make NestLoop plan nodes pass outer-relation variables into their inner relation using the general PARAM_EXEC executor parameter mechanism, rather than the ad-hoc kluge of passing the outer tuple down through ExecReScan. The previous method was hard to understand and could never be extended to handle parameters coming from multiple join levels. This patch doesn't change the set of possible plans nor have any significant performance effect, but it's necessary infrastructure for future generalization of the concept of an inner indexscan plan. ExecReScan's second parameter is now unused, so it's removed.
16 years ago
* $PostgreSQL: pgsql/src/include/executor/nodeMaterial.h,v 1.31 2010/07/12 17:01:06 tgl Exp $
Postgres95 1.01 Distribution - Virgin Sources
30 years ago
*
*-------------------------------------------------------------------------
*/
Massive commit to run PGINDENT on all *.c and *.h files.
29 years ago
#ifndef NODEMATERIAL_H
#define NODEMATERIAL_H
Postgres95 1.01 Distribution - Virgin Sources
30 years ago
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.
23 years ago
#include "nodes/execnodes.h"
Cleanup up include files.
29 years ago
Extend the ExecInitNode API so that plan nodes receive a set of flag bits indicating which optional capabilities can actually be exercised at runtime. This will allow Sort and Material nodes, and perhaps later other nodes, to avoid unnecessary overhead in common cases. This commit just adds the infrastructure and arranges to pass the correct flag values down to plan nodes; none of the actual optimizations are here yet. I'm committing this separately in case anyone wants to measure the added overhead. (It should be negligible.) Simon Riggs and Tom Lane
20 years ago
extern MaterialState *ExecInitMaterial(Material *node, EState *estate, int eflags);
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.
23 years ago
extern TupleTableSlot *ExecMaterial(MaterialState *node);
extern void ExecEndMaterial(MaterialState *node);
extern void ExecMaterialMarkPos(MaterialState *node);
extern void ExecMaterialRestrPos(MaterialState *node);
Make NestLoop plan nodes pass outer-relation variables into their inner relation using the general PARAM_EXEC executor parameter mechanism, rather than the ad-hoc kluge of passing the outer tuple down through ExecReScan. The previous method was hard to understand and could never be extended to handle parameters coming from multiple join levels. This patch doesn't change the set of possible plans nor have any significant performance effect, but it's necessary infrastructure for future generalization of the concept of an inner indexscan plan. ExecReScan's second parameter is now unused, so it's removed.
16 years ago
extern void ExecReScanMaterial(MaterialState *node);
Another pgindent run. Fixes enum indenting, and improves #endif spacing. Also adds space for one-line comments.
25 years ago
New pgindent run with fixes suggested by Tom. Patch manually reviewed, initdb/regression tests pass.
25 years ago
#endif /* NODEMATERIAL_H */