Re: knngist - 0.8 - Mailing list pgsql-hackers

From Robert Haas
Subject Re: knngist - 0.8
Date
Msg-id AANLkTikFwwb_Dp1t9s1r5Hp-nr5HDYgfkeb3wpwp6ULG@mail.gmail.com
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In response to Re: knngist - 0.8  (Bruce Momjian <bruce@momjian.us>)
List pgsql-hackers
On Wed, Dec 22, 2010 at 8:04 PM, Bruce Momjian <bruce@momjian.us> wrote:
> Tom Lane wrote:
>> Robert Haas <robertmhaas@gmail.com> writes:
>> > 2010/9/13 Teodor Sigaev <teodor@sigaev.ru>:
>> >> [updated patch]
>>
>> > I realize I'm repeating myself, but...  this patch needs
>> > documentation.  It's not optional.
>>
>> I've applied all of this, and written documentation for all of it,
>> except for the contrib/btree_gist additions which still need to be
>> redone for the revised API (and then documented!).  My patience ran out
>> somewhere around there, so I'm marking that part as returned with
>> feedback.
>>
>> What we have at this point (pending contrib/btree_gist fixes) is
>> nearest-neighbor searching capability for point columns.  And
>> trigram-based nearest-neighbor for text strings, if you install
>> contrib/pg_trgm.  That doesn't seem like a lot of return for the
>> amount of work that went into it.  Are there plans to add KNN support
>> for any other standard types?
>
> I was thinking /contrib/fuzzystrmatch could use it to find the words
> that mostly closely match a string.

Seems unlikely to be feasible.

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company


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