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: oleg@sai.msu.su, http://www.sai.msu.su/~megera/
phone: +007(495)939-16-83, +007(495)939-23-83