Re: logfile subprocess and Fancy File Functions

Andreas Pflug wrote:
> Peter Eisentraut wrote:
> > Bruce Momjian wrote:
> >
> >>For logs I think pgsql_ is best because that filename is already
> >>going to be long, and I don't usually like dashes in file names.
> >>They look too much like arguments, but tarballs use them and it looks
> >>OK there, I guess.
> >
> >
> > I wasn't talking about what looks best, I was talking about current
> > practice for log files.  From that you might be able to extrapolate
> > what other people have previously found to look best.
> >
> > In any case, we're not using DOS and 12 inch monitors any more.  File
> > names can be as long as we want.
> >
>
> Before the thread concentrates too much on a decent default value, I'm
> posting a fresh version of the patch, for some more discussion. Current
> default for pg_logfile_prefix is 'postgresql-', may the committers
> decide which name is The Perfect One.
>
> All previous suggestions have been included, (nb: abstimein is not
> usable, because it ereports(ERROR) on failure; we want to skip wrong
> files gracefully, so I'm using ParseDateTime and DecodeDateTime instead).
>
> I'd still need feedback on pg_dir_ls: should it merely return a setof
> text, or should I enrich it to a record returning all stat data? After
> spending another thought on it, I believe the more sql-like approach is
> to deliver a full-featured record which is selected for the desired
> data, not adding columns with functions.

Now that I look at it, you could remove pg_file_length() and allow
pg_dir_ls to show you the file sizes.  The only problem is that the
length is needed for the read API so you would need to use a WHERE
clause to pick the file where you want the size, rather than just pass
the file name.

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