Re: range test for hash index?

On Sat, Sep 14, 2019 at 12:48 AM Paul A Jungwirth
<pj@illuminatedcomputing.com> wrote:
>
> Hello,
>
> I noticed the tests for range types do this:
>
> create table numrange_test2(nr numrange);
> create index numrange_test2_hash_idx on numrange_test2 (nr);
>
> Does that need a `using hash`? It seems like that's the intention.
>

I also think so.  It appears to be added by commit 4429f6a9e3 which
has also added support for hash_range.  So ideally this index should
be there to cover hash_range.  I think you can once cross-check if by
default this test-file covers the case of hash_range?  If not and the
change you are proposing starts covering that code, then there is a
good chance that your finding is correct.

In general, the hash_range is covered by some of the existing test,
but I don't which test.  See the code coverage report here:
https://coverage.postgresql.org/src/backend/utils/adt/rangetypes.c.gcov.html

-- 
With Regards,
Amit Kapila.
EnterpriseDB: http://www.enterprisedb.com