Thanks for your reply Ning , I saw that page , but we need some detailed description .. such as how optimizations are carried out .. how ASTs are built etc .. Do u (or any others) have any idea abt them .. Kindly reply
Thanks ! On Tue, Oct 13, 2009 at 7:10 PM, Ning Zhang <[email protected]> wrote: > The design doc in Hive's wiki page provides some high level > descriptions. See http://wiki.apache.org/hadoop/Hive/Design > the "compilation" and "optimization" sections. > > Ning > > On Oct 13, 2009, at 4:09 AM, bharath vissapragada wrote: > > > Hi all , > > > > We are trying to work on the Optimizer part of hive . Can anyone > > point me to a document/link containing how Hive designs it's query > > plans , > > what meta data it uses , how it optimizes the plans (pushing down > > selects etc) ... Iam facing difficulties is reading the source > > code , so it would > > be nice if any one point me to the link containing the above data or > > any document containing the same. > > > > Any help is highly appreciated ! > > > > Thanks ! > >
