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

Bruce Momjian wrote:
> 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.

OK, original patch applied to HEAD and smaller version to 8.1.X, and
regression test added, now attached.

--
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman@candle.pha.pa.us               |  (610) 359-1001
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Index: src/test/regress/expected/copy2.out
===================================================================
RCS file: /cvsroot/pgsql/src/test/regress/expected/copy2.out,v
retrieving revision 1.22
diff -c -c -r1.22 copy2.out
*** src/test/regress/expected/copy2.out    26 Jun 2005 03:04:18 -0000    1.22
--- src/test/regress/expected/copy2.out    27 Dec 2005 18:19:36 -0000
***************
*** 194,199 ****
--- 194,202 ----
  --test that we read consecutive LFs properly
  CREATE TEMP TABLE testnl (a int, b text, c int);
  COPY testnl FROM stdin CSV;
+ -- test end of copy marker
+ CREATE TEMP TABLE testeoc (a text);
+ COPY testeoc FROM stdin CSV;
  DROP TABLE x, y;
  DROP FUNCTION fn_x_before();
  DROP FUNCTION fn_x_after();
Index: src/test/regress/sql/copy2.sql
===================================================================
RCS file: /cvsroot/pgsql/src/test/regress/sql/copy2.sql,v
retrieving revision 1.13
diff -c -c -r1.13 copy2.sql
*** src/test/regress/sql/copy2.sql    26 Jun 2005 03:04:37 -0000    1.13
--- src/test/regress/sql/copy2.sql    27 Dec 2005 18:19:36 -0000
***************
*** 139,144 ****
--- 139,153 ----
  inside",2
  \.

+ -- test end of copy marker
+ CREATE TEMP TABLE testeoc (a text);
+
+ COPY testeoc FROM stdin CSV;
+ a\.
+ \.b
+ c\.d
+ \.
+

  DROP TABLE x, y;
  DROP FUNCTION fn_x_before();