Re: Re: [COMMITTERS] pgsql: Add some isolation tests for deadlock detection and resolution.

On 2016-02-12 13:16:54 -0500, Tom Lane wrote:
> Investigation showed that there are a couple of reasons.  One,
> isolationtester's is-it-waiting query takes an insane amount of
> time under CLOBBER_CACHE_ALWAYS --- over half a second on my
> reasonably new server.

I wonder if we shouldn't just expose a 'which pid is process X waiting
for' API, implemented serverside. That's generally really useful, and
looks like it's actually going to be less complicated than that
query... And it's surely going to be faster.

Andres