bersprockets commented on code in PR #38923:
URL: https://github.com/apache/spark/pull/38923#discussion_r1045401210
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/InterpretedMutableProjection.scala:
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@@ -72,7 +73,7 @@ class InterpretedMutableProjection(expressions:
Seq[Expression]) extends Mutable
private[this] val fieldWriters: Array[Any => Unit] = validExprs.map { case
(e, i) =>
val writer = InternalRow.getWriter(i, e.dataType)
- if (!e.nullable) {
+ if (!e.nullable || e.dataType.isInstanceOf[DecimalType]) {
Review Comment:
I can follow up, since calendar interval has the same problem (in the case
of calendar interval, the issue exists in both `InterpretedMutableProjection`
and `InterpretedUnsafeProjection`).
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