mirror of https://github.com/postgres/postgres
Change 'merge sort join', a phrase we use nowhere else, to the more
usual 'merge join'.
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<!-- $PostgreSQL: pgsql/doc/src/sgml/arch-dev.sgml,v 2.30 2007/07/21 04:02:41 tgl Exp $ -->
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<!-- $PostgreSQL: pgsql/doc/src/sgml/arch-dev.sgml,v 2.31 2007/12/12 06:23:27 tgl Exp $ -->
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<chapter id="overview">
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<title>Overview of PostgreSQL Internals</title>
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<listitem>
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<para>
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<firstterm>merge sort join</firstterm>: Each relation is sorted on the join
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<firstterm>merge join</firstterm>: Each relation is sorted on the join
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attributes before the join starts. Then the two relations are
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scanned in parallel, and matching rows are combined to form
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join rows. This kind of join is more
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