Re: [sqlsmith] Crash reading pg_stat_activity

On Wed, Dec 28, 2016 at 11:57 AM, Thomas Munro
<thomas(dot)munro(at)enterprisedb(dot)com> wrote:
> But I'm starting to think that the best way might be to do BOTH of the
> things I said in my previous message: make dsa.c register on
> create/attach and also unregister before detaching iff the name was
> supplied at creation time for the benefit of extension writers, but
> make it not do anything at all about tranche name
> registration/unregistration if NULL was passed in at create time.
> Then register this particular tranche (LWTRANCHE_PARALLEL_QUERY_DSA)
> in every process in RegisterLWLockTranches. That way, you'd get a
> useful name in pg_stat_activity for other backends that are running
> parallel queries if they are ever waiting for these locks (unlikely
> but interesting to know abotu if it happens).

Maybe something like the attached.

--
Thomas Munro
http://www.enterprisedb.com