Re: What does log_destination = csvlog mean?

Andrew Dunstan wrote:
> 
> 
> Bruce Momjian wrote:
> > In reading through our documentation, I am unclear how "log_destination
> > = csvlog" works.  It seems to me that 'cvslog' is a format-output type,
> > not a real destination, or rather it is a special output format for
> > stderr.  Is this accurate?  I would like to clarify our documentation.
> >
> >   
> 
> CSV logs can in fact only be delivered via redirected stderr, i.e. 
> csvlog requires that logging_collector be on. So in a sense it's both a 
> format and a destination.
> 
> There is a strong technical reason for that, namely that only by doing 
> that can be be sure that CSV logs won't get lines multiplexed, which 
> would make loading them back into a table impossible. We invented a 
> whole (simple) protocol between the backends and the syslogger just to 
> handle that.

That's what I thought;  thanks.

--  Bruce Momjian          http://momjian.us EnterpriseDB                             http://enterprisedb.com
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