Re: RFC: Logging plan of the running query

Hi!

You forgot my last fix to build correctly on Mac. I have added it.

About our discussion of pg_query_state:

torikoshia писал 2021-11-04 15:49:
>> I doubt that it was the right link.
> Sorry for make you confused, here is the link.
> https://www.postgresql.org/message-id/CA%2BTgmobkpFV0UB67kzXuD36--OFHwz1bs%3DL_6PZbD4nxKqUQMw%40mail.gmail.com

Thank you. I'll see it soon.

> I imagined the following procedure.
> Does it cause dead lock in pg_query_state?
> 
> - session1
> BEGIN; TRUNCATE t;
> 
> - session2
> BEGIN; TRUNCATE t; -- wait
> 
> - session1
> SELECT * FROM pg_query_state(<pid of session>); -- wait and dead 
> locked?

As I know, pg_query_state use non-blocking read and write. I have wrote 
few tests trying to deadlock it (on 14 version), but all finished 
correctly.

Have a nice day. Please feel free to contact me if you need any further 
information.

-- 
Ekaterina Sokolova
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company