Re: Duplicate Workers entries in some EXPLAIN plans

> Sounds good, I'll try that format. Any idea how to test YAML? With the
> JSON format, I was able to rely on Postgres' own JSON-manipulating
> functions to strip or canonicalize fields that can vary across
> executions--I can't really do that with YAML.

Yes, this approach was clear in the patch and works great with Json. Also
you are correct, this can not be done with YAML. I spend a bit of time to
look around and I could not find any tests really on yaml format.

> Or should I run EXPLAIN
> with COSTS OFF, TIMING OFF, SUMMARY OFF and assume that for simple
> queries the BUFFERS output (and other fields I can't turn off like
> Sort Space Used) *is* going to be stable?

I have to admit with the current diff tool used in pg_regress, this is not possible.
I am pretty certain that it *is not* going to be stable. Not for long anyways.
I withdraw my suggestion for YAML and currently awaiting for TEXT format only.