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

From: Dmitriy Igrishin <dmitigr(at)gmail(dot)com>
To: pgsql-general(at)postgresql(dot)org
Subject: Why length(to_char(1::integer, '9')) = 2 ?
Date: 2011-03-09 13:12:37
Message-ID: AANLkTimM7i23Xe6A1vF=cgrLBF0j5ekjRpKQ2i2Am-rX@mail.gmail.com
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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.

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