On Fri, May 11, 2012 at 12:07 AM, MauMau <maumau307@gmail.com> wrote:
> Thanks for your explanation. Although I haven't understood it well yet, I'll
> consider what you taught. And I'll consider if the tentative measure of
> removing KEEPONLYALNUM is correct for someone who wants to use pg_trgm
> against Japanese text.
In Japanese, it's common to do a text search with two characters keyword.
But since pg_trgm is 3-gram, you basically would not be able to use index
for such text search. So you might need something like pg_bigm or pg_unigm
for Japanese text search.
Regards,
--
Fujii Masao