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From sreejesh s <>
Subject Understanding ORC file format compression
Date Sun, 21 Jun 2015 07:56:17 GMT
As per my understanding, the available codecs for ORC file format Hive table compression are
either Zlib or Snappy.Both the compression techniques are non splittable.. Does it mean that
any queries on Hive table stored as ORC and compressed will not run multiple maps in parallel
I know that is not correct, please help me understand what i am missing here...
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