Stephan Szabo <sszabo@megazone23.bigpanda.com> writes:
> On Tue, 10 Sep 2002, Goran Buzic wrote:
>> id1 char(6) NOT NULL CHECK(id1 ~* '^([0-9]{1,2}\.){2}$'),
> Bad column type choice. char(6) is space padded, so 1.2. looks like
> "1.2. ". For me, 12.12. works, but any shorter one fails. Unless
> you need space padding elsewhere, you may just want to use varchar(6);
Also, the backslash has to be doubled to get through the string literal
parser, so what you really want is
id1 varchar(6) NOT NULL CHECK(id1 ~* '^([0-9]{1,2}\\.){2}$'),
else it will accept values you don't want...
regards, tom lane