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[SPARK-8363][SQL] Move sqrt to math and extend UnaryMathExpression
JIRA: https://issues.apache.org/jira/browse/SPARK-8363 Author: Liang-Chi Hsieh <viirya@gmail.com> Closes #6823 from viirya/move_sqrt and squashes the following commits: 8977e11 [Liang-Chi Hsieh] Remove unnecessary old tests. d23e79e [Liang-Chi Hsieh] Explicitly indicate sqrt value sequence. 699f48b [Liang-Chi Hsieh] Use correct @since tag. 8dff6d1 [Liang-Chi Hsieh] Merge remote-tracking branch 'upstream/master' into move_sqrt bc2ed77 [Liang-Chi Hsieh] Remove/move arithmetic expression test and expression type checking test. Remove unnecessary Sqrt type rule. d38492f [Liang-Chi Hsieh] Now sqrt accepts boolean because type casting is handled by HiveTypeCoercion. 297cc90 [Liang-Chi Hsieh] Sqrt only accepts double input. ef4a21a [Liang-Chi Hsieh] Move sqrt to math.
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- sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/HiveTypeCoercion.scala 0 additions, 1 deletion...apache/spark/sql/catalyst/analysis/HiveTypeCoercion.scala
- sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/arithmetic.scala 0 additions, 32 deletions...rg/apache/spark/sql/catalyst/expressions/arithmetic.scala
- sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/math.scala 2 additions, 0 deletions...cala/org/apache/spark/sql/catalyst/expressions/math.scala
- sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/ArithmeticExpressionSuite.scala 0 additions, 15 deletions.../sql/catalyst/expressions/ArithmeticExpressionSuite.scala
- sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/ExpressionTypeCheckingSuite.scala 0 additions, 2 deletions...ql/catalyst/expressions/ExpressionTypeCheckingSuite.scala
- sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/MathFunctionsSuite.scala 10 additions, 0 deletions...e/spark/sql/catalyst/expressions/MathFunctionsSuite.scala
- sql/core/src/main/scala/org/apache/spark/sql/functions.scala 9 additions, 1 deletionsql/core/src/main/scala/org/apache/spark/sql/functions.scala
- sql/core/src/test/scala/org/apache/spark/sql/MathExpressionsSuite.scala 10 additions, 0 deletions...est/scala/org/apache/spark/sql/MathExpressionsSuite.scala
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