Log Message: ----------- Change 'merge sort join', a phrase we use nowhere else, to the more usual 'merge join'.
Modified Files:
--------------
pgsql/doc/src/sgml:
arch-dev.sgml (r2.30 -> r2.31)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/arch-dev.sgml?r1=2.30&r2=2.31)
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TIP 6: explain analyze is your friend
