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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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12
src/backend/optimizer/plan/setrefs.c
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@ -402,6 +402,18 @@ set_plan_refs(PlannerGlobal *glob, Plan *plan, int rtoffset)
fix_scan_list(glob, splan->scan.plan.qual, rtoffset);
}
break;
case T_ForeignScan:
{
ForeignScan *splan = (ForeignScan *) plan;
splan->scan.scanrelid += rtoffset;
splan->scan.plan.targetlist =
fix_scan_list(glob, splan->scan.plan.targetlist, rtoffset);
splan->scan.plan.qual =
fix_scan_list(glob, splan->scan.plan.qual, rtoffset);
}
break;
case T_NestLoop:
case T_MergeJoin:
case T_HashJoin: