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Re: [BUGS] BUG #2114: (patch) COPY FROM ... end of copy marker

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Andrew Dunstan <andrew(at)dunslane(dot)net>
Cc: Ben Gould <ben(dot)gould(at)free(dot)fr>, PostgreSQL-patches <pgsql-patches(at)postgresql(dot)org>
Subject: Re: [BUGS] BUG #2114: (patch) COPY FROM ... end of copy marker
Date: 2005-12-27 17:49:13
Message-ID: 200512271749.jBRHnDG07431@candle.pha.pa.us (view raw or flat)
Thread:
Lists: pgsql-bugspgsql-patches
Andrew Dunstan wrote:
> 
> 
> Bruce Momjian wrote:
> 
> > The big problem is that \. is also a valid
> >CSV data value (though not a valid non-CSV data value).  So, the
> >solution we came up with was to require \. to appear alone on a line in
> >CSV mode for it to be treated as end-of-copy.  
> >
> 
> According to the docs, that's the way to specify EOD in both text and 
> CSV mode:
> 
>   End of data can be represented by a single line containing just 
> backslash-period.

Right, but in non-CSV mode, we allow \. at the end of any line because
it is unique so I kept that behavior.  That is not documented however.

> Your analysis regarding line_buf.len seems correct.
> 
> We probably should have a regression test with \. in a CSV field.

Agreed.  My test for CSV was simple, just try loading:

	x\.
	x\.b
	\.c

all should load literally, but they fail.

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

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