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From: Sean Davis <sdavis2@mail.nih.gov>
Subject: Re: Alias to a type
Date: Wed, 22 Jun 2005 08:04:39 -0400
To: Achilleus Mantzios <achill@matrix.gatewaynet.com>
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On Jun 22, 2005, at 7:42 AM, Achilleus Mantzios wrote:

> O Veikko M=CE=B4kinen =CE=AD=CE=B3=CF=81=CE=B1=CF=88=CE=B5 =CF=83=CF=84=CE=
=B9=CF=82 Jun 22, 2005 :
>
>> Hey,
>>
>> Is it possible to create a new type as an alias to a pre-defined=20
>> type? I
>> use "USERID varchar(20)" in almost every table I have I'd like to =
make
>> an alias for that type eg.
>>
>> <pseudo-sql>
>>    create type myschema.useridtype as varchar(20);
>> </pseudo-sql>
>>
>
> Try something like
>
> CREATE DOMAIN my_integer AS INTEGER;

Just for my own edification, does creating a "simple" domain like this=20=

then require a whole set of functions for indexing, etc., like other=20
more complex user-defined types, or will postgres "do the right thing"?

Thanks,
Sean