On Tue, Jan 4, 2022 at 12:05 PM Kyotaro Horiguchi <horikyota....@gmail.com> wrote: > > At Wed, 29 Dec 2021 10:34:31 +0900, Masahiko Sawada <sawada.m...@gmail.com> > wrote in > > On Tue, Dec 28, 2021 at 3:29 PM Fujii Masao <masao.fu...@oss.nttdata.com> > > wrote: > > > > > > > > > > > > On 2021/12/28 9:32, Masahiko Sawada wrote: > > > > Doesn't this query return 64? So the expression "substring(str for > > > > (SELECT max_identifier_length FROM pg_control_init()))" returns the > > > > first 64 characters of the given string while the application_name is > > > > truncated to be 63 (NAMEDATALEN - 1) characters. It also seems to be > > > > fine to use current_setting('max_identifier_length') instead of > > > > max_identifier_length of pg_control_init(). > > > > > > Interesting! I agree that current_setting('max_identifier_length') should > > > be used instead. Attached is the updated version of the patch. It uses > > > current_setting('max_identifier_length'). > > > > Thank you for updating the patch! It looks good to me. > > pg_terminate_backend returns just after kill() returns. So I'm afraid > that there's a case where the next access to ft6 happens before the > old connection actually ends on slow machines or under heavy load.
The test does pg_terminate_backend() with a timeout, and in this case, don't we wait for the backend to end after sending the signal? Regards, -- Masahiko Sawada EDB: https://www.enterprisedb.com/