Re: [HACKERS] Deadlock with pg_dump?

Tom Lane wrote:
> Bruce Momjian <bruce@momjian.us> writes:
> > Are people going to be happy that log_statement and
> > log_min_duration_statement output the statement twice?
>
> If those are the only cases you're worried about, a far simpler solution
> is to clear debug_query_string before instead of after emitting those
> log messages.

I am concerned about setting debug_query_string to NULL, calling
ereport(), and then resetting it might cause problems because of cases
where ereport might want to access debug_query_string for other uses,
for cases where ereport doesn't return to the reset code (but I assume
that is handled), and for cases like pgmonitor that would stop a
backend, read debug_query_string, and disconnect.

I can create a global variable to control this, but the new elog level
seemed cleaner.

--
  Bruce Momjian  <bruce@momjian.us>          http://momjian.us
  EnterpriseDB                               http://www.enterprisedb.com

  + If your life is a hard drive, Christ can be your backup. +