Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/5303#discussion_r27711090
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/SpecificMutableRow.scala
---
@@ -230,13 +247,15 @@ final class SpecificMutableRow(val values:
Array[MutableValue]) extends MutableR
new GenericRow(newValues)
}
- override def update(ordinal: Int, value: Any): Unit = {
- if (value == null) setNullAt(ordinal) else
values(ordinal).update(value)
+ override def update(ordinal: Int, value: Any): Unit = value match {
+ case null => setNullAt(ordinal)
+ case s: String => update(ordinal, UTF8String(s))
--- End diff --
do we ever have a string here? since this is used internally by spark sql,
it seems wrong to expect a string
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