Re: md5 hash on table row

Michael Fuhr wrote:
> On Wed, Nov 02, 2005 at 06:07:45PM +0100, A. Kretschmer wrote:
> > am 02.11.2005, um 9:35:33 -0700 mailte Michael Fuhr folgendes:
> > > test=> SELECT id, md5(textin(record_out(foo))) FROM foo;
> >
> > is 'record_out()' new in 8.1?
>
> The signature has changed over time:
>
> 7.3 record_out(record)
> 7.4 record_out(record)
> 8.0 record_out(record,oid)
> 8.1 record_out(record)
>
> As I already discovered and as Tom pointed out, the cast from foo
> to record works only in 8.1. In 8.0 you can use row(foo), but that
> adds even more decoration to the output.

Where should we document this?

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