BUG #3056: strange behave of CHECK constraint

Is it just me, or did you reverse the sense of your check. In the
first case, you select with "[^0-9]", but your constraint uses
"[0-9]" without the carrot.

On Feb 22, 2007, at 4:48 PM, Pavel Stehule wrote:

The following bug has been logged online:

Bug reference: 3056
Logged by: Pavel Stehule
Email address: pavel.stehule@hotmail.com
PostgreSQL version: 8.3
Operating system: Linux
Description: strange behave of CHECK constraint
Details:

Hello,

check constraint doesn't work correct:

opeerator similar works well:

root=# select '233' not similar to '%[^0-9]%';
?column?
----------
t
(1 řádka)

but:
root=# create table tt(a varchar check (a not similar to '%[0-9]%'));
CREATE TABLE
root=# insert into tt values('233');
ERROR: new row for relation "tt" violates check constraint
"tt_a_check"

Regards
Pavel Stehule

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Douglas Toltzman
doug@oakstreetsoftware.com
(910) 526-5938

Pavel Stehule wrote:

check constraint doesn't work correct:

There is nothing incorrect happening here. I think you are confused.

--
Peter Eisentraut
http://developer.postgresql.org/~petere/