The following bug has been logged online:

Bug reference:      4338
Logged by:          Domingo Alvarez Duarte
Email address:      [EMAIL PROTECTED]
PostgreSQL version: 8.2.9
Operating system:   linux
Description:        Order by seems to trim some characters before sort
Details: 

I have a test table:
CREATE TABLE test
(
  id serial NOT NULL,
  t character varying,
  CONSTRAINT test_pkey PRIMARY KEY (id)
)
with tis data retrieved by: select * from test order by 2

4;"---abacate"
3;"arpa"
5;"--- bacate"
1;"dad"
2;"--dad"

I expect the result to be :

5;"--- bacate"
4;"---abacate"
2;"--dad"
3;"arpa"
1;"dad"

It seems that postgresql is issuing a kind of trim on the column value
before sort/compare, because it's ignoring spaces and '-' wich I use
propositally to move some values to front.

Why postgresql is behaving this way ?
I couldn't find an expalanation in the documentation.

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