Re: text search patch status update?
От | Bruce Momjian |
---|---|
Тема | Re: text search patch status update? |
Дата | |
Msg-id | 200901081434.n08EYgf09060@momjian.us обсуждение исходный текст |
Ответ на | Re: text search patch status update? (Bruce Momjian <bruce@momjian.us>) |
Список | pgsql-hackers |
OK, Heikki still believe the behavior below is a bug. Can I get feedback from anyone else on this? TODO item? --------------------------------------------------------------------------- > Heikki Linnakangas wrote: > > Sushant Sinha wrote: > > > Patch #2. I think this is a straigt forward bug fix. > > > > Yes, I think you're right. In hlCover(), *q is 0 when the only match is > > the first item in the text, and we shouldn't bail out with "return > > false" in that case. > > > > But there seems to be something else going on here as well: > > > > postgres=# select ts_headline('1 2 3 4 5', '2'::tsquery, 'MinWords=2, > > MaxWords=3'); > > ts_headline > > -------------- > > <b>2</b> 3 4 > > (1 row) > > > > postgres=# select ts_headline('aaa1 aaa2 aaa3 aaa4 > > aaa5','aaa2'::tsquery, 'MinWords=2, MaxWords=3'); > > ts_headline > > ------------------ > > <b>aaa2</b> aaa3 > > (1 row) > > > > In the first example, you get three words, and in the 2nd, just two. It > > must be because of the default ShortWord setting of 3. Also, if only the > > last word matches, and it's a "short word", you get the whole text: > > > > postgres=# select ts_headline('1 2 3 4 5','5'::tsquery, 'MinWords=2, > > MaxWords=3'); > > ts_headline > > ------------------ > > 1 2 3 4 <b>5</b> > > (1 row) > > > > -- > > Heikki Linnakangas > > EnterpriseDB http://www.enterprisedb.com > > > > -- > > Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) > > To make changes to your subscription: > > http://www.postgresql.org/mailpref/pgsql-hackers > > -- > Bruce Momjian <bruce@momjian.us> http://momjian.us > EnterpriseDB http://enterprisedb.com > > + If your life is a hard drive, Christ can be your backup. + > > -- > Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-hackers -- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB http://enterprisedb.com + If your life is a hard drive, Christ can be your backup. +
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