#419 Functions returning the 'table' type are handled incorrectly

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If the function is created as returning the 'table' type, phpPgAdmin treats it as returning the 'setof record'. And when I try to modify the function I get the 'cannot change return type of existing function' error because it tries to alter it with a wrong return type.

ex
CREATE OR REPLACE FUNCTION "public"."getvalues" (int p1) RETURNS TABLE (val1 integer, val2 integer) AS
....

ERROR: cannot change return type of existing function
DETAIL: Row type defined by OUT parameters is different.
HINT: Use DROP FUNCTION first.

in

CREATE OR REPLACE FUNCTION "public"."getvalues" (int p1) RETURNS SETOF record AS
....