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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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14
src/backend/executor/execProcnode.c
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@ -85,6 +85,7 @@
#include "executor/nodeBitmapIndexscan.h"
#include "executor/nodeBitmapOr.h"
#include "executor/nodeCtescan.h"
#include "executor/nodeForeignscan.h"
#include "executor/nodeFunctionscan.h"
#include "executor/nodeGroup.h"
#include "executor/nodeHash.h"
@ -232,6 +233,11 @@ ExecInitNode(Plan *node, EState *estate, int eflags)
estate, eflags);
break;
case T_ForeignScan:
result = (PlanState *) ExecInitForeignScan((ForeignScan *) node,
estate, eflags);
break;
/*
* join nodes
*/
@ -422,6 +428,10 @@ ExecProcNode(PlanState *node)
result = ExecWorkTableScan((WorkTableScanState *) node);
break;
case T_ForeignScanState:
result = ExecForeignScan((ForeignScanState *) node);
break;
/*
* join nodes
*/
@ -650,6 +660,10 @@ ExecEndNode(PlanState *node)
ExecEndWorkTableScan((WorkTableScanState *) node);
break;
case T_ForeignScanState:
ExecEndForeignScan((ForeignScanState *) node);
break;
/*
* join nodes
*/