"Maxime Carbonneau" <manitou(at)maikan(dot)com> writes:
> I did some modification on the file
> "/usr/local/pgsql/share/tsearch_data/french.stop" to realize that the letter
> '' brings the error.
Yeah, this is the same problem noted about a month ago :-(
http://archives.postgresql.org/pgsql-bugs/2008-06/msg00110.php
It's fixed in CVS but we haven't made a new release yet.
If you need the patch right away, see
http://archives.postgresql.org/pgsql-committers/2008-06/msg00226.php
regards, tom lane