2016-09-22 10:02 GMT+12:00 Jim Nasby <jim.na...@bluetreble.com>:
> On 9/21/16 1:50 PM, Steve Petrie, P.Eng. wrote:
>> The reason I ask is -- the maximum length of a valid email address is
>> actually 256 characters (or 254, according comments in the PHP function
>> is_valid_email_address(...) that I found on the Internet at
>> http://code.iamcal.com/ and use myself).
>> In my own PG DDL, I define email addresses like:
>> contact_email_addr varchar(256) NOT NULL,
> FWIW, I stay away from varchar limits that are more than a "suggestion".
> Generally speaking it's just not worth limiting to something like 50, then
> the business decides they want 60, then 70, then... I still use varchar to
> ensure the database can't get DOS'd with garbage, but I'll just set
> something like varchar(100). That said, if there's a defined limit for
> email address length, might as well use it...
> Disclosure: I'm a PG newbie (and a relative SQL newbie, too), and not
>> familiar with the DEFAULT ":: notation in your DDL.
> The :: is a cast that was presumably added by Postgres when the default
> was assigned. It's equivalent to DEFAULT ''. I definitely don't like
> defaults like that... if you don't know what the email is then it should be
> NULL. Or to put it another way, having a default set largely defeats the
> purpose of NOT NULL (IMHO).
Rather than test.u...@example.com <test.u...@tikcha.com> I was hoping for
values such as:
test.4645364.@ <test.46453...@tikcha.com>example.com <test.u...@tikcha.com>
test.8786756.@ <test.87867...@tikcha.com>example.com <test.u...@tikcha.com>
With UNIQUE UUID
is that possible?