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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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6
src/backend/optimizer/util/clauses.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/util/clauses.c,v 1.72 2000/08/21 17:22:34 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/util/clauses.c,v 1.73 2000/08/24 03:29:05 tgl Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@@ -1447,7 +1447,6 @@ simplify_op_or_func(Expr *expr, List *args)
bool has_nonconst_input = false;
bool has_null_input = false;
bool const_is_null;
bool isDone;
/*
* Check for constant inputs and especially constant-NULL inputs.
@@ -1566,8 +1565,7 @@ simplify_op_or_func(Expr *expr, List *args)
econtext = MakeExprContext(NULL, CurrentMemoryContext);
const_val = ExecEvalExprSwitchContext((Node *) newexpr, econtext,
&const_is_null, &isDone);
Assert(isDone); /* if this isn't set, we blew it... */
&const_is_null, NULL);
/* Must copy result out of sub-context used by expression eval */
const_val = datumCopy(const_val, resultTypByVal, resultTypLen);