From: Sean Davis <sdavis2@mail.nih.gov>
To: Achilleus Mantzios <achill@matrix.gatewaynet.com>
Cc: Veikko Mäkinen <veikko.makinen@ecom.fi>
Cc: pgsql-sql@postgresql.org
Subject: Re: Alias to a type
Date: Wed, 22 Jun 2005 08:04:39 -0400
Message-ID: <af9f545f8a3ab4a09d90b2d589443a49@mail.nih.gov> (raw)
In-Reply-To: <Pine.LNX.4.44.0506221440440.4771-100000@matrix.gatewaynet.com>
References: <Pine.LNX.4.44.0506221440440.4771-100000@matrix.gatewaynet.com>
On Jun 22, 2005, at 7:42 AM, Achilleus Mantzios wrote:
> O Veikko Mδkinen έγραψε στις Jun 22, 2005 :
>
>> Hey,
>>
>> Is it possible to create a new type as an alias to a pre-defined
>> 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
then require a whole set of functions for indexing, etc., like other
more complex user-defined types, or will postgres "do the right thing"?
Thanks,
Sean
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-sql@postgresql.org
Cc: sdavis2@mail.nih.gov, achill@matrix.gatewaynet.com, veikko.makinen@ecom.fi
Subject: Re: Alias to a type
In-Reply-To: <af9f545f8a3ab4a09d90b2d589443a49@mail.nih.gov>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox