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Support use of function argument names to identify which actual arguments

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match which function parameters.  The syntax uses AS, for example
	funcname(value AS arg1, anothervalue AS arg2)

Pavel Stehule
This commit is contained in:
Tom Lane
2009-10-08 02:39:25 +00:00
parent 2eda8dfb52
commit 717fa274d1
34 changed files with 1925 additions and 274 deletions
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14
src/backend/catalog/pg_aggregate.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/catalog/pg_aggregate.c,v 1.102 2009/06/11 14:48:55 momjian Exp $
* $PostgreSQL: pgsql/src/backend/catalog/pg_aggregate.c,v 1.103 2009/10/08 02:39:18 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -321,7 +321,8 @@ lookup_agg_function(List *fnName,
* function's return value. it also returns the true argument types to
* the function.
*/
fdresult = func_get_detail(fnName, NIL, nargs, input_types, false, false,
fdresult = func_get_detail(fnName, NIL, NIL,
nargs, input_types, false, false,
&fnOid, rettype, &retset, &nvargs,
&true_oid_array, NULL);
@@ -330,12 +331,14 @@ lookup_agg_function(List *fnName,
ereport(ERROR,
(errcode(ERRCODE_UNDEFINED_FUNCTION),
errmsg("function %s does not exist",
func_signature_string(fnName, nargs, input_types))));
func_signature_string(fnName, nargs,
NIL, input_types))));
if (retset)
ereport(ERROR,
(errcode(ERRCODE_DATATYPE_MISMATCH),
errmsg("function %s returns a set",
func_signature_string(fnName, nargs, input_types))));
func_signature_string(fnName, nargs,
NIL, input_types))));
/*
* If there are any polymorphic types involved, enforce consistency, and
@@ -359,7 +362,8 @@ lookup_agg_function(List *fnName,
ereport(ERROR,
(errcode(ERRCODE_DATATYPE_MISMATCH),
errmsg("function %s requires run-time type coercion",
func_signature_string(fnName, nargs, true_oid_array))));
func_signature_string(fnName, nargs,
NIL, true_oid_array))));
}
/* Check aggregate creator has permission to call the function */