Re: unable to call a function

something gone wrong the same...

REATE OR REPLACE FUNCTION check_if_if_exist(id integer, table_name
character, table_column character)
  RETURNS boolean AS
$BODY$

DECLARE res BOOLEAN;

BEGIN
    EXECUTE 'SELECT EXISTS(SELECT * FROM'||table_name||
        'WHERE'||table_column||'='||$1||')' INTO res USING id;
    RETURN res;
END;

select check_if_exist(10, 'prova', 'identificatore');


RROR:  function check_if_exist(integer, unknown, unknown) does not exist
LINE 1: select check_if_exist(10, 'prova', 'identificatore');
               ^
HINT:  No function matches the given name and argument types. You might need
to add explicit type casts.



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