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Yin Huai 3af656defa Make ExecutionMode.HashResults handle null value 
In Spark 1.6, if a value is null, `getLong` will throw an exception. Before 1.6, it will return 0. With this PR, we will check if the result is null. If it is null, null will be returned instead of 0.

Author: Yin Huai <yhuai@databricks.com>

Closes #41 from yhuai/fixSumHash.
2015-12-08 15:28:48 -08:00
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notebooks Add dashboard notebook 2015-09-11 17:46:07 -07:00
scala/com/databricks/spark/sql/perf Make ExecutionMode.HashResults handle null value 2015-12-08 15:28:48 -08:00