On Thu, Jun 9, 2016 at 12:47 AM, Tom Lane <t...@sss.pgh.pa.us> wrote: > Oleg Bartunov <obartu...@gmail.com> writes: >> On Wed, Jun 8, 2016 at 8:12 PM, Tom Lane <t...@sss.pgh.pa.us> wrote: >>> Another thing I noticed: if you test with tsvectors that don't contain >>> position info, <-> seems to reduce to &, that is it doesn't enforce >>> relative position: > >> yes, that's documented behaviour. > > Oh? Where? I've been going through the phrase-search documentation and > copy-editing it today, and I have not found this stated anywhere.
Hmm, looks like it is missing. We have told about this since 2008. Just found http://www.sai.msu.su/~megera/postgres/talks/2009.pdf (slide 5) and http://www.sai.msu.su/~megera/postgres/talks/pgcon-2016-fts.pdf (slide 27) We need to reach a consensus here, since there is no way to say "I don't know". I inclined to agree with you, that returning false is better in such a case.That will indicate user to the source of problem. > > regards, tom lane -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers