[GENERAL] Why length(to_char(1::integer, '9')) = 2 ?

[Dmitriy Igrishin]

Hey all,

dmitigr=> select to_char(1, '9');
 to_char
---------
  1

dmitigr=> select length(to_char(1, '9'));
 length
--------
      2

Why to_char() includes preceding blank space in the result ?

-- 
// Dmitriy.