Re: pgmonitor patch for query string - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: pgmonitor patch for query string
Date
Msg-id 200103141827.NAA00281@candle.pha.pa.us
Whole thread Raw
In response to pgmonitor patch for query string  (Bruce Momjian <pgman@candle.pha.pa.us>)
List pgsql-hackers
> Bruce Momjian writes:
> 
> > It does this by creating a global variable 'debug_query_string' and
> > assigning it when the query begins and clearing it when the query ends.
> 
> You can find out the current query for a given backend by configuring the
> server with "debug_print_query on" and "log_pids on" and running
> 
> sed -n "/[$pid]/"'s/^.*query: \(.*\)$/\1/p' $logfile
> 
> This doesn't tell you whether the query is still running, but ps tells you
> that.  In fact, it might be an idea to add a logging option that prints
> something like "query finished in xxx ms".  We actually have something
> similar hidden under show_query_stats, but the formatting needs to be made
> more convenient and possibly less verbose.  But at least this way you have
> it for the record, and not only on the screen.

Yes, I thought of that idea.  I wasn't sure I would be able to find the
log file in any installation-independent way, or even if a log file was
even being kept.

And I was afraid some people wouldn't want to log all queries.

--  Bruce Momjian                        |  http://candle.pha.pa.us pgman@candle.pha.pa.us               |  (610)
853-3000+  If your life is a hard drive,     |  830 Blythe Avenue +  Christ can be your backup.        |  Drexel Hill,
Pennsylvania19026
 


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