Horton

Re: char(0)

Susanne Ebrecht <susanne@2ndquadrant.com>

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From: Susanne Ebrecht <susanne@2ndQuadrant.com>
To: Andreas Pflug <pgadmin@pse-consulting.de>
Cc: Thomas Kellerer <spam_eater@gmx.net>, pgsql-bugs@postgresql.org
Date: 2011-10-18T14:38:37Z
Lists: pgsql-bugs 
On 17.10.2011 16:41, Andreas Pflug wrote:
> Am 17.10.11 10:53, schrieb Thomas Kellerer:
>> Susanne Ebrecht, 17.10.2011 09:31:
>>> Hello,
>>>
>>> I couldn't find that somebody already mentioned it.
>>>
>>> PostgreSQL isn't supporting CHAR(0).
>>>
>>> An empty string has a length of 0.
>>>
>>> CHAR(0) can have two values: NULL and empty string.
>>>
>>> In MySQL it is very common to simulate not null boolean
>>> by using CHAR(0).
>>>
>>> This is a little bit annoying on migration topics.
>> While not move on to a cleaner approach during the migration and use a
>> "boolean not null"?
> Sounds much too straight forward, not mysql-ish artistic enough...

Depends if you want / are able to touch the application source code or not.

Susanne

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Susanne Ebrecht - 2ndQuadrant
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