Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/5675#discussion_r29024715
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/types/DataType.scala ---
@@ -40,32 +40,46 @@ import org.apache.spark.util.Utils
*/
@DeveloperApi
abstract class DataType {
- /** Matches any expression that evaluates to this DataType */
- def unapply(a: Expression): Boolean = a match {
+ /**
+ * Enables matching against NumericType for expressions:
--- End diff --
ah yes - I will fix that.
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