| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Martijn van Oosterhout <kleptog(at)svana(dot)org> |
| Cc: | "Jim C(dot) Nasby" <jnasby(at)pervasive(dot)com>, mark(at)mark(dot)mielke(dot)cc, Thomas Hallgren <thomas(at)tada(dot)se>, Josh Berkus <josh(at)agliodbs(dot)com>, Andrew Dunstan <andrew(at)dunslane(dot)net>, "A(dot)M(dot)" <agentm(at)themactionfaction(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Fixed length datatypes. WAS [GENERAL] UUID's as |
| Date: | 2006-07-01 15:15:24 |
| Message-ID: | 24185.1151766924@sss.pgh.pa.us |
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| Lists: | pgsql-general pgsql-hackers |
Martijn van Oosterhout <kleptog(at)svana(dot)org> writes:
> On Sat, Jul 01, 2006 at 10:37:59AM -0400, Tom Lane wrote:
>> The output function, however, would be quite a trick.
>> It's not going to receive anything except the Datum itself.
> Hmm, you're right. With the taggedtypes module I made it work by
> cloning the output function with a new OID each time and setting the
> arg type so that procLookupArgType() would work. Similarly, the input
> function would use procLookupRettype() to find the desired type.
Oh, I see, you relied on flinfo->fn_oid and then did two cat lookups.
That would work as long as nothing tried to call the function with
DirectFunctionCall ... which is a pretty safe assumption I guess.
regards, tom lane
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