Re: logfile subprocess and Fancy File Functions - Mailing list pgsql-patches

From Bruce Momjian
Subject Re: logfile subprocess and Fancy File Functions
Date
Msg-id 200407200339.i6K3d0Y12516@candle.pha.pa.us
Whole thread Raw
In response to Re: logfile subprocess and Fancy File Functions  (Andreas Pflug <pgadmin@pse-consulting.de>)
Responses Re: logfile subprocess and Fancy File Functions
List pgsql-patches
Andreas Pflug wrote:
> Updated patch which leaves postmaster runnable after the syslogger
> terminated due to pipe problems.

Very nice.  You did a nice trick of reading the log filenames into a
timestamp field:

        count = sscanf(de->d_name, "%04d-%02d-%02d_%02d%02d%02d_%05d.log", &yea$

You only process files that match that pattern for pg_logfiles_ls()
(perhaps this should be pg_logdir_ls for consistency).  And you can then
process the timestamp field in queries.  Good idea.  What happens if a
filename matches the above pattern but isn't a valid timestamp?  Does
the function fail?

My only question is whether we need to allow a custom prefix for the
log filenames so they can be distinguished from other file names in a
user-supplied log directory, like /var/log, or would they always go into
a separate directory under there.  I think a prefix would be nice.

Of course this needs docs but I assume you are waiting to see it applied
first.

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