[ISSUE #855] Add the Test Util And ORC Writer for Spark#857

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rdblue merged 3 commits intoapache:masterfrom

XiaokunDing:OrcWriter

Apr 4, 2020

Commits on Mar 26, 2020

[ISSUE #855] Add the Test Util And ORC file writer
XiaokunDing
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Commits on Mar 30, 2020

[ISSUE #855] Add the Test Util And ORC file writer
XiaokunDing
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Commits on Apr 2, 2020

[ISSUE #855] Delete Nested test
XiaokunDing
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