On Thu, May 30, 2013 at 12:49 PM, Sawada Masahiko <sawada.m...@gmail.com>wrote:

> following emails are discussed about partial match of pg_trgm.  I hope
>  will this help.
> <
> http://www.postgresql.org/message-id/cahgqgwfjshvv2ngme19wdtw9tefw_w7h2ns4e+yysjkb9wd...@mail.gmail.com
> >
> as you may know, if search string contains multibyte characters
> trigram key is converted to CRC of 4 byte and it is used as key.
> (but only use upper 3 byte from CRC)
> so we can do partial matching if KEEPONLYALNUM is enabled.
>

Please, read the further discussion on that thread. We can't do partial
matching because of CRC independently of KEEPONLYALNUM.

------
With best regards,
Alexander Korotkov.

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