[jira] [Created] (SPARK-8961) Makes BaseWriterContainer.outputWriterForRow accepts InternalRow instead of Row

["Cheng Lian (JIRA)" <ji...@apache.org>]

Cheng Lian created SPARK-8961:
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             Summary: Makes BaseWriterContainer.outputWriterForRow accepts InternalRow instead of Row
                 Key: SPARK-8961
                 URL: https://issues.apache.org/jira/browse/SPARK-8961
             Project: Spark
          Issue Type: Bug
          Components: SQL
    Affects Versions: 1.4.0, 1.4.1
            Reporter: Cheng Lian
            Assignee: Cheng Lian


This is a follow-up of SPARK-8888, which also aims to optimize writing dynamic partitions.

Three more changes can be made here:

# Using {{InternalRow}} instead of {{Row}} in {{BaseWriterContainer.outputWriterForRow}}
# Using {{Cast}} expressions to convert partition columns to strings, so that we can leverage code generation.
# Replacing the FP-style {{zip}} and {{map}} calls with a faster imperative {{while}} loop.



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