2c3cc7641d
When do the query like: ``` select datediff(cast(value as timestamp), cast('2002-03-21 00:00:00' as timestamp)) from src; ``` SparkSQL will raise exception: ``` [info] scala.MatchError: TimestampType (of class org.apache.spark.sql.catalyst.types.TimestampType$) [info] at org.apache.spark.sql.catalyst.expressions.Cast.castToTimestamp(Cast.scala:77) [info] at org.apache.spark.sql.catalyst.expressions.Cast.cast$lzycompute(Cast.scala:251) [info] at org.apache.spark.sql.catalyst.expressions.Cast.cast(Cast.scala:247) [info] at org.apache.spark.sql.catalyst.expressions.Cast.eval(Cast.scala:263) [info] at org.apache.spark.sql.catalyst.optimizer.ConstantFolding$$anonfun$apply$5$$anonfun$applyOrElse$2.applyOrElse(Optimizer.scala:217) [info] at org.apache.spark.sql.catalyst.optimizer.ConstantFolding$$anonfun$apply$5$$anonfun$applyOrElse$2.applyOrElse(Optimizer.scala:210) [info] at org.apache.spark.sql.catalyst.trees.TreeNode.transformDown(TreeNode.scala:144) [info] at org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$4$$anonfun$apply$2.apply(TreeNode.scala:180) [info] at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244) [info] at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244) ``` Author: Cheng Hao <hao.cheng@intel.com> Closes #2368 from chenghao-intel/cast_exception and squashes the following commits: 5c9c3a5 [Cheng Hao] make more clear code 49dfc50 [Cheng Hao] Add no-op for Cast and revert the position of SimplifyCasts b804abd [Cheng Hao] Add unit test to show the failure in identical data type casting 330a5c8 [Cheng Hao] Update Code based on comments b834ed4 [Cheng Hao] Fix bug of HiveSimpleUDF with unnecessary type cast which cause exception in constant folding |
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main/scala/org/apache/spark/sql/catalyst | ||
test/scala/org/apache/spark/sql/catalyst |