On Sun, Aug 27, 2017 at 8:31 PM, Michael Malis <michaelmalis2@gmail.com> wrote:
> (Sorry David. I initially replied only to you)
>
> Ok. I've attached a patch of a proof-of-concept. I have a few
> questions about tests.
>
> What is typical workflow to add tests for changes to the planner?
Add submitted patches at commitfest.postgresql.org
> Also
> I ran make check and it appears one of the existing tests is failing.
> What is a typical way for going about discovering why the query plan
> for a specific query changed?
I don't have any magic answer on this point.
> Also, how should I go about changing the
> old test? Should I replace the old test output with the new test
> output or modify the old test slightly to get it to produce the same
> case as before?
That's a judgement call, based on what you think the point of the test was.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company