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postgres/src/include/executor/nodeFunctionscan.h

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First pass at set-returning-functions in FROM, by Joe Conway with some kibitzing from Tom Lane. Not everything works yet, and there's no documentation or regression test, but let's commit this so Joe doesn't need to cope with tracking changes in so many files ...
24 years ago
/*-------------------------------------------------------------------------
*
* nodeFunctionscan.h
*
*
*
Update copyright to 2004.
22 years ago
* Portions Copyright (c) 1996-2004, PostgreSQL Global Development Group
First pass at set-returning-functions in FROM, by Joe Conway with some kibitzing from Tom Lane. Not everything works yet, and there's no documentation or regression test, but let's commit this so Joe doesn't need to cope with tracking changes in so many files ...
24 years ago
* Portions Copyright (c) 1994, Regents of the University of California
*
Update copyright to 2004.
22 years ago
* $PostgreSQL: pgsql/src/include/executor/nodeFunctionscan.h,v 1.6 2004/08/29 04:13:06 momjian Exp $
First pass at set-returning-functions in FROM, by Joe Conway with some kibitzing from Tom Lane. Not everything works yet, and there's no documentation or regression test, but let's commit this so Joe doesn't need to cope with tracking changes in so many files ...
24 years ago
*
*-------------------------------------------------------------------------
*/
#ifndef NODEFUNCTIONSCAN_H
#define NODEFUNCTIONSCAN_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.
23 years ago
#include "nodes/execnodes.h"
First pass at set-returning-functions in FROM, by Joe Conway with some kibitzing from Tom Lane. Not everything works yet, and there's no documentation or regression test, but let's commit this so Joe doesn't need to cope with tracking changes in so many files ...
24 years ago
extern int ExecCountSlotsFunctionScan(FunctionScan *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.
23 years ago
extern FunctionScanState *ExecInitFunctionScan(FunctionScan *node, EState *estate);
extern TupleTableSlot *ExecFunctionScan(FunctionScanState *node);
extern void ExecEndFunctionScan(FunctionScanState *node);
extern void ExecFunctionMarkPos(FunctionScanState *node);
extern void ExecFunctionRestrPos(FunctionScanState *node);
extern void ExecFunctionReScan(FunctionScanState *node, ExprContext *exprCtxt);
First pass at set-returning-functions in FROM, by Joe Conway with some kibitzing from Tom Lane. Not everything works yet, and there's no documentation or regression test, but let's commit this so Joe doesn't need to cope with tracking changes in so many files ...
24 years ago
#endif /* NODEFUNCTIONSCAN_H */