Hi all, reading this article:
http://www.devx.com/dbzone/Article/20743
I notice on page 2:
"New versions of PostgreSQL support standard row-level locking as an option, but MVCC is the preferred method"
What this does mean ?
Regards Gaetano Mendola
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TIP 9: the planner will ignore your desire to choose an index scan if your
joining column's datatypes do not match
