On 07/26/2012 02:14 PM, Johann Spies wrote:
Hallo Tom,
I believe the problem is that the one-argument form of to_tsquery() uses
the default TS configuration, which you have probably not got set to
"simple". For me, the default TS configuration is "english", which will
stem "polity" as "politi":
regression=# select to_tsquery('(polity & church)');
to_tsquery
---------------------
'politi' & 'church'
(1 row)
However the "simple" configuration doesn't do anything to that lexeme:
Thanks for the explanation. I am working with a multi-language database
and that was the reason for using the 'simple' configuration.
I have asked, in an earlier message on this list, advice on how to
handle full text searches in a multi-language database, but got no
reaction to it. If there is a better way than using the 'simple'
configuration in this case, I would gladly try it.
You'll need to store language information alongside each text value if
you want to do anything more sophisticated. If you have mixed languages
within a single text value or if you don't store information about the
language a text value is in then you're largely out of luck.
--
Craig Ringer
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