Review Request: Sqoop User Guide's troubleshooting section should explain how to override the column mapping when importing a table from MySQL into Hive

[Kathleen Ting]

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https://reviews.apache.org/r/4357/
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Review request for Sqoop and Arvind Prabhakar.


Summary
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Updated documentation.


This addresses bug SQOOP-463.
    https://issues.apache.org/jira/browse/SQOOP-463


Diffs
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  ./src/docs/user/troubleshooting.txt 1300726 

Diff: https://reviews.apache.org/r/4357/diff


Testing
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Built docs and verified.


Thanks,

Kathleen