Reynold Xin created SPARK-8822:
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Summary: clean up type checking in math.scala
Key: SPARK-8822
URL: https://issues.apache.org/jira/browse/SPARK-8822
Project: Spark
Issue Type: Sub-task
Components: SQL
Reporter: Reynold Xin
Assignee: Reynold Xin
There are various issues w.r.t. type checking in math.scala. Most of the custom
implementation of checkInputTypes can be replaced with mixin ExpectsInputTypes.
There are also other minor issues, such as over complicating certain
expressions due to the previous lack of implicit type casting among numeric
types.
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