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Re: PostgreSQL does CAST implicitely between int and a domain derived from int - Mailing list pgsql-performance

From Tom Lane
Subject Re: PostgreSQL does CAST implicitely between int and a domain derived from int
Date
Msg-id 1941.1251582324@sss.pgh.pa.us
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In response to Re: PostgreSQL does CAST implicitely between int and a domain derived from int  (Jean-Michel Pouré <jm@poure.com>)
Responses Re: PostgreSQL does CAST implicitely between int and a domain derived from int  (Greg Stark <gsstark@mit.edu>)
List pgsql-performance
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Jean-Michel =?ISO-8859-1?Q?Pour=E9?= <jm@poure.com> writes:
> What do you recommend: using normal types and moving constraints in the
> Drupal database? Is PostgreSQL domain broken as it forces casting or is
> this a no-op for performance?

In principle it should be an unnoticeable slowdown.  In the past we've
had some issues with the planner failing to recognize possible
optimizations when there was a cast in the way, but I'm not aware of
any such bugs at the moment.

            regards, tom lane

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