CREATE OR REPLACE FUNCTION myfunction (integer,integer) RETURNS integer AS $$
declare
value1 alias $1;
value2 alias $2;
begin
$1=(select cs_id from sometable);
$2=(select CurrentDuration from sometable);
end;
$$language plpgsql;
declare
value1 alias $1;
value2 alias $2;
begin
$1=(select cs_id from sometable);
$2=(select CurrentDuration from sometable);
end;
$$language plpgsql;
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