On 11/28/2013 10:27 AM, N wrote:
> Thanks, but still not same. For example, is there subquery flattening
> , is there any other query re-write ? is there website or books have
> such detail ?
>
http://git.postgresql.org/gitweb/?p=postgresql.git;a=blob;f=src/backend/optimizer/README;h=adaa07ee60eebef0199b6e7208f709e56a6411e8;hb=b7f59e6d3e7c10ef0e222ce8ee6d19e8be304e29
--
Adrian Klaver
adrian(dot)klaver(at)gmail(dot)com