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Support named and default arguments in CALL

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We need to call expand_function_arguments() to expand named and default
arguments.

In PL/pgSQL, we also need to deal with named and default INOUT arguments
when receiving the output values into variables.

Author: Pavel Stehule <pavel.stehule@gmail.com>
This commit is contained in:
Peter Eisentraut
2018-04-13 17:06:28 -04:00
parent 7c44c46deb
commit a8677e3ff6
8 changed files with 261 additions and 31 deletions
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4
src/backend/optimizer/util/clauses.c
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@@ -130,8 +130,6 @@ static Expr *simplify_function(Oid funcid,
Oid result_collid, Oid input_collid, List **args_p,
bool funcvariadic, bool process_args, bool allow_non_const,
eval_const_expressions_context *context);
static List *expand_function_arguments(List *args, Oid result_type,
HeapTuple func_tuple);
static List *reorder_function_arguments(List *args, HeapTuple func_tuple);
static List *add_function_defaults(List *args, HeapTuple func_tuple);
static List *fetch_function_defaults(HeapTuple func_tuple);
@@ -4112,7 +4110,7 @@ simplify_function(Oid funcid, Oid result_type, int32 result_typmod,
* cases it handles should never occur there. This should be OK since it
* will fall through very quickly if there's nothing to do.
*/
static List *
List *
expand_function_arguments(List *args, Oid result_type, HeapTuple func_tuple)
{
Form_pg_proc funcform = (Form_pg_proc) GETSTRUCT(func_tuple);