Parquet schema evolution on non-primitive type#71

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Yaliang wants to merge 3 commits intotwitter-forks:twitter-masterfrom Yaliang:yaliangw/schemaEvolution

+698-76

Commits on Feb 25, 2017

Support Schema Evolution in Parquet

jxiang
authored and
Yaliang
committed
Added Parquet Schema Evolution Test
Yaliang
committed
Add non-primitive coercion and prevent extract regular column handles on non-primitive type for Parquet so that the Parquet cursor can get the table schema
Yaliang
committed