From: Tom Lane <tgl@sss.pgh.pa.us>
To: Guy Fraser <guy@incentre.net>
Cc: pgsql-sql@postgresql.org
Subject: Re: converting microsoft sql server 2000 sql-code for postgresql
Date: Tue, 28 Jan 2003 20:55:24 -0500
Message-ID: <16682.1043805324@sss.pgh.pa.us> (raw)
In-Reply-To: <3E36FCF0.5060305@incentre.net>
References: <000901c2c6b5$2deef350$240aa8c0@L1PC01>
<200301281728.16020.mallah@trade-india.com>
<3E36FCF0.5060305@incentre.net>
Guy Fraser <guy@incentre.net> writes:
> If you go through the documentation you can also find out how to CREATE your
> own data TYPE to allow more direct use of non-PostgreSQL data types. Here is
> an example that will allow input of any "datetime" data into PostgreSQL :
> CREATE TYPE datetime AS (datetime timestamptz);
I think what you probably really want is
CREATE DOMAIN datetime AS timestamptz;
or more SQL-spec-compliantly
CREATE DOMAIN datetime AS timestamp with time zone;
which essentially makes datetime a direct alias for timestamptz. The
CREATE TYPE approach makes a rowtype containing one timestamptz column,
which isn't really going to act the way you want --- for one thing,
none of the predefined functions and operators for type timestamptz
will accept it. With the DOMAIN approach, they will.
regards, tom lane
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To: pgsql-sql@postgresql.org
Cc: tgl@sss.pgh.pa.us, guy@incentre.net
Subject: Re: converting microsoft sql server 2000 sql-code for postgresql
In-Reply-To: <16682.1043805324@sss.pgh.pa.us>
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