Re: How hard would it be to support LIKE in return declaration of generic record function calls ?

From: Peter Eisentraut <peter_e(at)gmx(dot)net>
To: Hannu Krosing <hannu(at)2ndQuadrant(dot)com>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: How hard would it be to support LIKE in return declaration of generic record function calls ?
Date: 2012-05-02 17:06:53
Message-ID: 1335978413.29903.1.camel@vanquo.pezone.net
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On ons, 2012-05-02 at 13:40 +0200, Hannu Krosing wrote:
> How hard would it be to add support for LIKE syntax, similar to table
> def in field list declaration for generic record functions
>
> What I'dd like to be able to do is to have a generic json_to_record
> function
>
> CREATE OR REPLACE RECORD json_to_record(json) RETURNS RECORD AS $$
> ...
> $$ LANGUAGE ... ;
>
> and then be able to call it like this
>
> insert into test2
> select * from json_to_record(jrec json) as (like test2);

That would be very useful, and shouldn't be too hard to implement. (I
had to look about three times to understand what this was supposed to
achieve, but I think the syntax is the right one after all.)

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