typo in psql-ref

Patch applied. Thanks. Your documentation changes can be viewed in
five minutes using links on the developer's page,
http://www.postgresql.org/developer/testing.

---------------------------------------------------------------------------

Andreas Seltenreich wrote:

I haven't found anything about saveponds in the release notes, so I
guess this is a typo :-)

[ Attachment, skipping... ]

---------------------------(end of broadcast)---------------------------
TIP 9: In versions below 8.0, the planner will ignore your desire to
choose an index scan if your joining column's datatypes do not
match

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