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Re: Status of Fix Domain Casting TODO

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Jim C(dot) Nasby" <jim(at)nasby(dot)net>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Status of Fix Domain Casting TODO
Date: 2007-01-01 23:05:30
Message-ID: 21051.1167692730@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackers
"Jim C. Nasby" <jim(at)nasby(dot)net> writes:
> FWIW, I'm running into this trying to create a 'raw' domain that would
> automagically convert hex strings into actual binary data for storage in
> a bytea.

I think you've got 0 chance of implementing that as a domain rather than
an independent type.  Without or without revisions in the casting rules,
a domain has not got its own I/O functions, and never will.

			regards, tom lane

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