Re: Proposals for EXPLAIN: rename ANALYZE to EXECUTE and extend VERBOSE

Nikolay Samokhvalov <samokhvalov@gmail.com>

From: Nikolay Samokhvalov <samokhvalov@gmail.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: pgsql-hackers@postgresql.org
Date: 2024-11-05T18:19:25Z
Lists: pgsql-hackers
On Tue, Nov 5, 2024 at 10:16 AM Tom Lane <tgl@sss.pgh.pa.us> wrote:

> Nikolay Samokhvalov <samokhvalov@gmail.com> writes:
> > 1) EXPLAIN ANALYZE Is sometimes very confusing (because there is
> ANALYZE).
> > Let's rename it to EXPLAIN EXECUTE?
>
> This has got far too many years of history to be renamed now.
>

This is a really, really strange argument. Postgres keeps receiving new
audiences at larger and larger scale. And they are confused.

It's better late than never. I didn't believe we would have "quit" working
in psql.


>
> > 2) VERBOSE doesn't include BUFFERS, and doesn't include SETTINGS; it
> might
> > be also confusing sometimes. Let's include them so VERBOSE would be
> really
> > verbose?
>
> This is not likely to fly for compatibility reasons.
>

Can you elaborate?


>
> > 3) small thing about grammar: allow omitting parentheses, so EXPLAIN
> > EXECUTE VERBOSE would work.
>
> The reason for the parens is that the other way would require reserving
> all these options as keywords.
>

turns out, EXPLAIN ANALYZE VERBOSE already working (it's just not as
verbose as one might expect_:

test=# explain analyze verbose select;
                QUERY PLAN
------------------------------------------
 Result  (cost=0.00..0.01 rows=1 width=0)
(1 row)

Commits

  1. Fix further fallout from EXPLAIN ANALYZE BUFFERS change

  2. Add missing BUFFERS OFF in regression tests, take 2

  3. Add missing BUFFERS OFF in select_into regression tests

  4. Enable BUFFERS with EXPLAIN ANALYZE by default