Parallel Execution of Query

From: Shmagi Kavtaradze <kavtaradze(dot)s(at)gmail(dot)com>
To: pgsql-novice(at)postgresql(dot)org
Subject: Parallel Execution of Query
Date: 2015-11-30 17:00:40
Message-ID: CAHY6mazU9EQTwbeRmGqySPP6LGyKteeu49a_CG6V2nYc2con+w@mail.gmail.com
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I am doing similarity matching (cosine, euclidean). If I have 4000 entries
in a table, the number of comparisons will be 16M. I am running postgres on
a virtual machine, so it takes 20-25 minutes to run the query or the system
crashes. Can I run the query in parallel? I heard there are tools like
PL/Proxy and pgpool, can I use them to create several databases on the same
machine and run query in parallel?

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