Oh, one more thing.  The only user-visible change I saw in the
regression tests is that a SELECT * on a table where all the columns
have been dropped doesn't return a blank line like before.  This seems
like a step forward.

Usage example:

        test=> SELECT '1\n2\n3', 'a\nb\nc';
         ?column? | ?column?
        ----------+----------
         1        | a
         2        : b
         3        : c
        (1 row)

---------------------------------------------------------------------------

Martijn van Oosterhout wrote:
-- Start of PGP signed section.
> [Please CC any replies, thanks]
> 
> This patch has the same effect as the last one except it now uses the
> PQmblen and PQdsplen functions exported by libpq as suggested by Tom.
> This clears a lot of stuff from psql's mbprint.c which is a good thing.
> This means it should work for all for encodings (though I can't say I
> tested them all).
> 
> The PQdsplen function in libpq has been improved so it can actually
> work and provide the necessary information for formatting. That file
> (wchar.c) is actually shared with the backend but the backend doesn't
> use the dsplen functions, so it does add some dead code (on top of what
> was already there).
> 
> Note: this changes the PQdsplen function, it can now return zero or
> minus one which was not possible before. It doesn't appear anyone is
> actually using the functions other than psql but it is a change. The
> functions are not actually documentated anywhere so it's not like we're
> breaking a defined interface. The new semantics follow the Unicode
> standard.
> 
> The other uses of PQdsplen in psql (in ReportSyntaxErrorPosition) would
> seem to be slightly affected by the change, except it's not clear how
> psql should react to control characters in the string it's trying to
> print...
> 
> Patch available at:
> http://svana.org/kleptog/pgsql/psql-format.patch
> 
> Comments welcome,
> 
> Have a nice day,
> -- 
> Martijn van Oosterhout   <kleptog@svana.org>   http://svana.org/kleptog/
> > Patent. n. Genius is 5% inspiration and 95% perspiration. A patent is a
> > tool for doing 5% of the work and then sitting around waiting for someone
> > else to do the other 95% so you can sue them.

[ Attachment, skipping... ]
-- End of PGP section, PGP failed!

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman@candle.pha.pa.us               |  (610) 359-1001
  +  If your life is a hard drive,     |  13 Roberts Road
  +  Christ can be your backup.        |  Newtown Square, Pennsylvania 19073

---------------------------(end of broadcast)---------------------------
TIP 3: Have you checked our extensive FAQ?

               http://www.postgresql.org/docs/faq

Reply via email to