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William Benton 2f1519defa SPARK-2813: [SQL] Implement SQRT() directly in Spark SQL 
This PR adds a native implementation for SQL SQRT() and thus avoids delegating this function to Hive.

Author: William Benton <willb@redhat.com>

Closes #1750 from willb/spark-2813 and squashes the following commits:

22c8a79 [William Benton] Fixed missed newline from rebase
d673861 [William Benton] Added string coercions for SQRT and associated test case
e125df4 [William Benton] Added ExpressionEvaluationSuite test cases for SQRT
7b84bcd [William Benton] SQL SQRT now properly returns NULL for NULL inputs
8256971 [William Benton] added SQRT test to SqlQuerySuite
504d2e5 [William Benton] Added native SQRT implementation
2014-08-29 15:26:59 -07:00
..
java/org/apache/spark/sql/api/java [SPARK-2739][SQL] Rename registerAsTable to registerTempTable 2014-08-02 18:27:04 -07:00
resources [SPARK-2935][SQL]Fix parquet predicate push down bug 2014-08-13 17:40:59 -07:00
scala/org/apache/spark/sql SPARK-2813: [SQL] Implement SQRT() directly in Spark SQL 2014-08-29 15:26:59 -07:00