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[SPARK-6829] Added math functions for DataFrames
Implemented almost all math functions found in scala.math (max, min and abs were already present). cc mengxr marmbrus Author: Burak Yavuz <brkyvz@gmail.com> Closes #5616 from brkyvz/math-udfs and squashes the following commits: fb27153 [Burak Yavuz] reverted exception message 836a098 [Burak Yavuz] fixed test and addressed small comment e5f0d13 [Burak Yavuz] addressed code review v2.2 b26c5fb [Burak Yavuz] addressed review v2.1 2761f08 [Burak Yavuz] addressed review v2 6588a5b [Burak Yavuz] fixed merge conflicts b084e10 [Burak Yavuz] Addressed code review 029e739 [Burak Yavuz] fixed atan2 test 534cc11 [Burak Yavuz] added more tests, addressed comments fa68dbe [Burak Yavuz] added double specific test data 937d5a5 [Burak Yavuz] use doubles instead of ints 8e28fff [Burak Yavuz] Added apache header 7ec8f7f [Burak Yavuz] Added math functions for DataFrames
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- sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/HiveTypeCoercion.scala 19 additions, 0 deletions...apache/spark/sql/catalyst/analysis/HiveTypeCoercion.scala
- sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Expression.scala 10 additions, 0 deletions...rg/apache/spark/sql/catalyst/expressions/Expression.scala
- sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/mathfuncs/binary.scala 93 additions, 0 deletions...che/spark/sql/catalyst/expressions/mathfuncs/binary.scala
- sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/mathfuncs/unary.scala 168 additions, 0 deletions...ache/spark/sql/catalyst/expressions/mathfuncs/unary.scala
- sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/ExpressionEvaluationSuite.scala 165 additions, 0 deletions.../sql/catalyst/expressions/ExpressionEvaluationSuite.scala
- sql/core/src/main/scala/org/apache/spark/sql/mathfunctions.scala 562 additions, 0 deletions...e/src/main/scala/org/apache/spark/sql/mathfunctions.scala
- sql/core/src/test/java/test/org/apache/spark/sql/JavaDataFrameSuite.java 9 additions, 0 deletions...st/java/test/org/apache/spark/sql/JavaDataFrameSuite.java
- sql/core/src/test/scala/org/apache/spark/sql/ColumnExpressionSuite.scala 0 additions, 1 deletion...st/scala/org/apache/spark/sql/ColumnExpressionSuite.scala
- sql/core/src/test/scala/org/apache/spark/sql/MathExpressionsSuite.scala 233 additions, 0 deletions...est/scala/org/apache/spark/sql/MathExpressionsSuite.scala
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