SIMILAR TO bug?

Folks,

Perhaps I've misunderstood this, but in PostgreSQL 8.3.5, I get
disparate results from ~ and SIMILAR TO.  For example:

This gives an unexpected result:

davidfetter@davidfetter=# SELECT 'abc' SIMILAR TO '^[a]';?column? 
----------f
(1 row)

This one is what I expected.

davidfetter@davidfetter=# SELECT 'abc' ~ '^[a]';?column? 
----------t
(1 row)

Did I misunderstand what SIMILAR TO does, or...?

Cheers,
David.
-- 
David Fetter <david@fetter.org> http://fetter.org/
Phone: +1 415 235 3778  AIM: dfetter666  Yahoo!: dfetter
Skype: davidfetter      XMPP: david.fetter@gmail.com

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