tree b14106dfa03be5547e237fad3d4dd4df3ce60063
parent 83174b781645429abe587f6d51a0fbc3c5436eb1
author xubo245 <601450868@qq.com> 1574614721 +0800
committer Jacky Li <jacky.likun@qq.com> 1575030038 +0800

 [CARBONDATA-3255] Support python writer and reader SDK

Apache CarbonData already provide Java/ Scala/C++ interface for users, and more and more people use python to manage and analysis big data, so it's better to provide python interface to support to write and read structured and unstructured data in CarbonData, like String, int and binary data: image/voice/video

In this PR, python SDK supports:
    1. API to read data: CarbonReader
    2. API to write data: CarbonWriter
    3. support primitive data types, nested types are not supported
    4. support projection and filter in reader

This closes #3478