Hi there, attached is our patch for CVS HEAD, which adds prefix support for synonym dictionary.
Quick example:
cat $SHAREDIR/tsearch_data/synonym_sample.syn
postgres pgsql
postgresql pgsql
postgre pgsql
gogle googl
indices index*
=# create text search dictionary syn(
template=synonym,synonyms='synonym_sample');
=# select ts_lexize('syn','indices');
ts_lexize
-----------
{index}
(1 row)
=# create text search configuration tst ( copy=simple);
=# alter text search configuration tst alter mapping for asciiword with syn;
=# select to_tsquery('tst','indices');
to_tsquery
------------
'index':*
(1 row)
=# select 'indexes are very useful'::tsvector @@ to_tsquery('tst','indices');
?column?
----------
t
(1 row)
Regards,
Oleg
_____________________________________________________________
Oleg Bartunov, Research Scientist, Head of AstroNet (www.astronet.ru),
Sternberg Astronomical Institute, Moscow University, Russia
Internet: o...@sai.msu.su, http://www.sai.msu.su/~megera/
phone: +007(495)939-16-83, +007(495)939-23-83
synonym_prefix.gz
Description: Binary data
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