Terminology definitions/meaning

From: "Chris Velevitch" <chris(dot)velevitch(at)gmail(dot)com>
To: pgsql-general(at)postgresql(dot)org
Subject: Terminology definitions/meaning
Date: 2007-12-12 05:07:03
Message-ID: b0a3bf780712112107u4a737a01n2898fa621e294bbf@mail.gmail.com
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I'm trying to understand the explain output, but I can't find any
references to the meanings of the following terms:-

merge join
nested loop
merge left join
nested loop left join

I'm using 7.4.

Chris
--
Chris Velevitch
Manager - Sydney Flash Platform Developers Group
m: 0415 469 095
www.flashdev.org.au

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