Re: pgsql: Make the pg_stat_activity view call a SRF

Tom Lane wrote:
> mha@postgresql.org (Magnus Hagander) writes:
> > Make the pg_stat_activity view call a SRF (pg_stat_get_activity())
> > instead of calling a bunch of individual functions.
>
> > This function can also be called directly, taking a PID as an
> > argument, to return only the data for a single PID.
>
> Hmm, if you really intend the function to be used directly, then
> having to provide the output column list for it is a pretty big
> usability hit. Why not declare it with OUT parameters, instead?

That does sound like a very good idea... I did notice that as being a
problem, but didn't know how to fix it without thinking more :-)
How do I do that in pg_proc.h? Is there some other function that does
this that I can peek at for inspiration?

//Magnus