Apache Pig
===========
Pig is a dataflow programming environment for processing very large files. Pig's
language is called Pig Latin. A Pig Latin program consists of a directed
acyclic graph where each node represents an operation that transforms data.
Operations are of two flavors: (1) relational-algebra style operations such as
join, filter, project; (2) functional-programming style operators such as map,
reduce. 
Pig compiles these dataflow programs into (sequences of) map-reduce or Apache Tez
jobs and executes them using Hadoop. It is also possible to execute Pig Latin
programs in a "local" mode (without Hadoop cluster), in which case all 
processing takes place in a single local JVM. 
General Info
===============
For the latest information about Pig, please visit our website at:
 http://pig.apache.org/
and our wiki, at:
 https://cwiki.apache.org/confluence/display/PIG/Index
Getting Started
===============
1. To learn about Pig, try https://cwiki.apache.org/confluence/display/PIG/PigTutorial
2. To build and run Pig, try http://wiki.apache.org/pig/BuildPig and
http://wiki.apache.org/pig/RunPig
3. To check out the function library, try
https://cwiki.apache.org/confluence/display/PIG/PiggyBank
Contributing to the Project
===========================
We welcome all contributions. For the details, please, visit
https://cwiki.apache.org/confluence/display/PIG/HowToContribute