LuciferYang commented on code in PR #47664:
URL: https://github.com/apache/spark/pull/47664#discussion_r1708814177
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sql/api/src/main/scala/org/apache/spark/sql/catalyst/encoders/RowEncoder.scala:
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@@ -106,7 +106,7 @@ object RowEncoder extends DataTypeErrorsBase {
UDTEncoder(udt, udtClass.asInstanceOf[Class[_ <: UserDefinedType[_]]])
case ArrayType(elementType, containsNull) =>
IterableEncoder(
- classTag[mutable.ArraySeq[_]],
+ classTag[immutable.ArraySeq[_]],
Review Comment:
But if the user is used to using `row.getAs[mutable.Seq]` instead of
`row.getSeq`, then he/she will have to switch to using
`row.getAs[immutable.Seq]`.
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