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SQL-language functions are now callable in ordinary fmgr contexts ...

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for example, an SQL function can be used in a functional index.  (I make
no promises about speed, but it'll work ;-).)  Clean up and simplify
handling of functions returning sets.
This commit is contained in:
Tom Lane
2000-08-24 03:29:15 +00:00
parent 87523ab8db
commit 782c16c6a1
35 changed files with 889 additions and 921 deletions
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11
src/backend/executor/nodeSubplan.c
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/executor/nodeSubplan.c,v 1.26 2000/07/12 02:37:04 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/executor/nodeSubplan.c,v 1.27 2000/08/24 03:29:03 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -40,7 +40,6 @@ ExecSubPlan(SubPlan *node, List *pvar, ExprContext *econtext, bool *isNull)
MemoryContext oldcontext;
TupleTableSlot *slot;
Datum result;
bool isDone;
bool found = false; /* TRUE if got at least one subplan tuple */
List *lst;
@ -67,9 +66,7 @@ ExecSubPlan(SubPlan *node, List *pvar, ExprContext *econtext, bool *isNull)
prm->value = ExecEvalExprSwitchContext((Node *) lfirst(pvar),
econtext,
&(prm->isnull),
&isDone);
if (!isDone)
elog(ERROR, "ExecSubPlan: set values not supported for params");
NULL);
pvar = lnext(pvar);
}
plan->chgParam = nconc(plan->chgParam, listCopy(node->parParam));
@ -189,9 +186,7 @@ ExecSubPlan(SubPlan *node, List *pvar, ExprContext *econtext, bool *isNull)
* Now we can eval the combining operator for this column.
*/
expresult = ExecEvalExprSwitchContext((Node *) expr, econtext,
&expnull, &isDone);
if (!isDone)
elog(ERROR, "ExecSubPlan: set values not supported for combining operators");
&expnull, NULL);
/*
* Combine the result into the row result as appropriate.