Sorry to be asking another phrase search syntax question, and so close
to final release, but ...
Really close...
Why does the phrase distance operator assume <1> means adjacent words,
and not <0>. (FYI, <-> is the same as <1>.)
Because
1 it is a result of subtruction of word's positions
2 <0> could be used as special case like a word with two infinitives:
# create text search dictionary xx (template = 'ispell',
DictFile='ispell_sample', AffFile='ispell_sample');
# alter text search configuration english ALTER MAPPING FOR asciiword WITH xx,
english_stem;
# select to_tsvector('english', 'bookings');
to_tsvector
----------------------
'book':1 'booking':1
# select to_tsvector('english', 'bookings') @@ 'book <0> booking';
?column?
----------
t
(1 row)
--
Teodor Sigaev E-mail: teo...@sigaev.ru
WWW: http://www.sigaev.ru/
--
Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-hackers
