Bibliography updates - Mailing list pgsql-patches

The attached patch updates three books in the Bibliography to their
most recent editions.  Publication information obtained from the
following sites:

The Practical SQL Handbook, Bowman et al
http://www.aw-bc.com/catalog/academic/product/0,1144,0201703092,00.html

An Introduction to Database Systems, Date
http://www.aw-bc.com/catalog/academic/product/0,1144,0321197844,00.html

Fundamentals of Database Systems, Elmasri & Navathe
http://www.aw-bc.com/catalog/academic/product/0,1144,0321122267,00.html

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Michael Fuhr
http://www.fuhr.org/~mfuhr/