HyukjinKwon commented on a change in pull request #35090:
URL: https://github.com/apache/spark/pull/35090#discussion_r777779451
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/orc/OrcDeserializer.scala
##########
@@ -137,26 +137,38 @@ class OrcDeserializer(
v.changePrecision(precision, scale)
updater.set(ordinal, v)
- case st: StructType => (ordinal, value) =>
+ case st: StructType =>
val result = new SpecificInternalRow(st)
val fieldUpdater = new RowUpdater(result)
val fieldConverters = st.map(_.dataType).map { dt =>
newWriter(dt, fieldUpdater)
}.toArray
- val orcStruct = value.asInstanceOf[OrcStruct]
- var i = 0
- while (i < st.length) {
- val value = orcStruct.getFieldValue(i)
- if (value == null) {
- result.setNullAt(i)
- } else {
- fieldConverters(i)(i, value)
- }
- i += 1
+ val containerUpdater = updater match {
+ case r: RowUpdater => r
+ case _ =>
+ // If the struct is contained by an array or map, we cannot reuse
the same result row.
+ // We must copy the result row before setting it into the array or
map
Review comment:
The changes look fine but quick question: do you know why we need to
copy in case of an array or map of structs?
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
