Re: list of extended statistics on psql

Hi,

>> 2) The test is failing intermittently because it's executed in parallel
>> with stats_ext test, which is also creating extended statistics. So
>> depending on the timing the \dX may list some of the stats_ext stuff.
>> I'm not sure what to do about this. Either this part needs to be moved
>> to a separate test executed in a different group, or maybe we should
>> simply move it to stats_ext.
>
> I thought all tests related to meta-commands exist in psql.sql, but I
> realize it's not true. For example, the test of \dRp does not exist in
> psql.sql. Therefore, I moved the regression test of \dX to stats_ext.sql
> to avoid the test failed in parallel.
>
> Attached patches is following:
>  - 0001-v8-Add-dX-command-on-psql.patch
>  - 0002-Add-regression-test-of-dX-to-stats_ext.sql.patch
>
> However, I feel the test of \dX is not elegant, so I'm going to try
> creating another one since it would be better to be aware of the context
> of existing extended stats tests.

I tried to create another version of the regression test (0003).
"\dX" was added after ANALYZE command or SELECT... from pg_statistic_ext.

Please find the attached file:
- 0003-Add-regression-test-of-dX-to-stats_ext.sql-another-ver

Both regression tests 0002 and 0003 are okay for me, I think.
Could you choose one?

Regards,
Tatsuro Yamada