| From: | "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com> |
|---|---|
| To: | Cory Tucker <cory(dot)tucker(at)gmail(dot)com> |
| Cc: | "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: Grouping By Similarity (using pg_trgm)? |
| Date: | 2015-05-14 20:16:31 |
| Message-ID: | CAKFQuwauNdeqoT8dGukSHzsJ-vquz2Ewbv+5kKBFQ4KqNrRwig@mail.gmail.com |
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| Lists: | pgsql-general |
On Thu, May 14, 2015 at 1:09 PM, Cory Tucker <cory(dot)tucker(at)gmail(dot)com> wrote:
> That produces pretty much the same results as the CROSS JOIN I was using
> before. Because each "my_value" in the table are different, if I group on
> just their value then I will always have the full result set and a bunch of
> essentially duplicated results.
>
> Any other ideas/options?
>
>
how do you want to solve the problem:
A is similar to B
B is similar to C
A IS NOT similar to C
?
I'm not sure that PostgreSQL is the best tool to solve clustering
problems...though my experience with them is minimal.
David J.
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