Log Message:
-----------
Remove duplicate emails.
Modified Files:
--------------
pgsql/doc/TODO.detail:
wal (r1.6 -> r1.7)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/TODO.detail/wal.diff?r1=1.6&r2=1.7)
---------------------------(end of broadcast)---------------------------
TIP 9: the planner will ignore your desire to choose an index scan if your
joining column's datatypes do not match
