Re: Why does log_error_verbosity not apply to server logs?

Jeremy Finzel <finzelj@gmail.com> writes:
> I have a DO block which is raising a log message with number of rows
> deleted.  It also shows CONTEXT messages every time, which I don't want.
> But setting in the client log_error_verbosity = terse does not work to get
> rid of the messages.  I can't get it to work even setting it on a per-user
> level.

> My client shows terse verbosity as expected, but the server logs always no
> matter what have CONTEXT messages.

Sure sounds to me like what you are setting is something client-side,
not the server's log verbosity.  It works for me:

regression=# do $$ declare x int; y int = 0; begin x := 1/y; end$$;
psql: ERROR:  division by zero
CONTEXT:  PL/pgSQL function inline_code_block line 1 at assignment
regression=# set log_error_verbosity = terse;
SET
regression=# do $$ declare x int; y int = 0; begin x := 1/y; end$$;
psql: ERROR:  division by zero
CONTEXT:  PL/pgSQL function inline_code_block line 1 at assignment

after which I see this in the postmaster log:

2019-04-22 16:40:38.300 EDT [25788] ERROR:  division by zero
2019-04-22 16:40:38.300 EDT [25788] CONTEXT:  PL/pgSQL function inline_code_block line 1 at assignment
2019-04-22 16:40:38.300 EDT [25788] STATEMENT:  do $$ declare x int; y int = 0; begin x := 1/y; end$$;
2019-04-22 16:40:51.654 EDT [25788] ERROR:  division by zero
2019-04-22 16:40:51.654 EDT [25788] STATEMENT:  do $$ declare x int; y int = 0; begin x := 1/y; end$$;

Note that this changed the server log verbosity but *not*
what was displayed on the client side.

(BTW, if you want to get rid of the statement logging as well,
see log_min_error_statement.)

Also note that adjusting log_error_verbosity on the fly
like this requires being superuser, which isn't really
a good way to run in production.  I'd expect though that
you could apply it with ALTER USER SET.

                        regards, tom lane