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Re: Terminology definitions/meaning - Mailing list pgsql-general

From Tom Lane
Subject Re: Terminology definitions/meaning
Date
Msg-id 12691.1197439010@sss.pgh.pa.us
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In response to Terminology definitions/meaning  ("Chris Velevitch" <chris.velevitch@gmail.com>)
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"Chris Velevitch" <chris.velevitch@gmail.com> writes:
> 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

http://developer.postgresql.org/pgdocs/postgres/planner-optimizer.html

            regards, tom lane

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