Check http://wiki.apache.org/pig/PigLogicalPlanOptimizerRewrite. It is
not up-to-date but capture the basic design of logical plan.
On Sun, Jan 29, 2012 at 8:41 PM, Prasanth J <[EMAIL PROTECTED]> wrote:
> Hello Everyone
> I am a newbie to pig. I was going through
> https://cwiki.apache.org/PIG/guide-for-new-contributors.html, specifically
> the grammar files to start off with.
> I could not understand how LogicalPlanGenerator.g works by looking into the
> grammar file. Also there isn't much documentation available which explains
> how logical plans are generated for different pig operators. Is there any
> reference from which I can learn more about the internals (especially the
> logical plan generation part)?