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From "Sarvesh Sakalanaga" <>
Subject Re: Review Request: Change ORC tree readers to return batches of rows instead of a row
Date Thu, 25 Apr 2013 01:00:57 GMT

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(Updated April 25, 2013, 1 a.m.)

Review request for hive.


Added java doc on nextVector function and nextBatch function based on Eric’s comments.


The patch contains changes to ORC reader to return a batch of rows instead of a row. A new
method called nextBatch() is added to ORC reader and tree readers of ORC. Currently only int,long,short,double,float,string
and struct support batch processing.

This addresses bug HIVE-4370.

Diffs (updated)

  ql/src/java/org/apache/hadoop/hive/ql/exec/vector/ 246170d 
  ql/src/java/org/apache/hadoop/hive/ql/io/orc/ fc4e53b 
  ql/src/java/org/apache/hadoop/hive/ql/io/orc/ 05240ce 
  ql/src/java/org/apache/hadoop/hive/ql/io/orc/ d044cd8 
  ql/src/java/org/apache/hadoop/hive/ql/io/orc/ 2825c64 
  ql/src/test/org/apache/hadoop/hive/ql/io/orc/ PRE-CREATION 




Sarvesh Sakalanaga

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