MySQL

From PostgreSQL wiki

This is a meta-page about MySQL, with hopes that it can point you in the right direction. There are a lot of different avenues to explore, are you looking for...

Reasons Why I Would Use Postgres Instead of MySQL?

http://wiki.postgresql.org/wiki/Why_PostgreSQL_Instead_of_MySQL_2009
http://sql-info.de/mysql/gotchas.html
http://casey.shobe.info/documents/mysql_limitations/

Case Studies / Comparisons of Postgres and MySQL?

http://tweakers.net/reviews/657/6
http://www.mysqlperformanceblog.com/2007/07/25/mysql-and-postgresql-specjappserver-benchmark-results/
http://www.oreillynet.com/onlamp/blog/2005/01/cd_baby_rewrite_in_postgres_an.html

Tools and Techniques for Converting Database From MySQL to Postgres?

http://dbconvert.com/convert-mysql-to-postgresql-pro.php 
http://www.in-nomine.org/~asmodai/mysql-to-pgsql.html 
http://www.metatrontech.com/wpapers/mysql2postgresql.pdf
http://pgfoundry.org/projects/mysqlcompat
http://208.76.222.114/confluence/display/REP/Convert+from+MySQL+to+PostgreSQL
http://www.raditha.com/mysql/mysql2pgsql.php
http://search.cpan.org/search?mode=module&query=SQL::Translator