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Implement an API to let foreign-data wrappers actually be functional.

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This commit provides the core code and documentation needed.  A contrib
module test case will follow shortly.

Shigeru Hanada, Jan Urbanski, Heikki Linnakangas
This commit is contained in:
Tom Lane
2011-02-20 00:17:18 -05:00
parent d5813488a4
commit bb74240794
39 changed files with 1202 additions and 62 deletions
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24
src/include/executor/nodeForeignscan.h Normal file
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/*-------------------------------------------------------------------------
*
* nodeForeignscan.h
*
*
*
* Portions Copyright (c) 1996-2011, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/executor/nodeForeignscan.h
*
*-------------------------------------------------------------------------
*/
#ifndef NODEFOREIGNSCAN_H
#define NODEFOREIGNSCAN_H
#include "nodes/execnodes.h"
extern ForeignScanState *ExecInitForeignScan(ForeignScan *node, EState *estate, int eflags);
extern TupleTableSlot *ExecForeignScan(ForeignScanState *node);
extern void ExecEndForeignScan(ForeignScanState *node);
extern void ExecReScanForeignScan(ForeignScanState *node);
#endif /* NODEFOREIGNSCAN_H */