LakshSingla commented on code in PR #16607:
URL: https://github.com/apache/druid/pull/16607#discussion_r1643002945
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processing/src/main/java/org/apache/druid/segment/serde/ComplexMetricSerde.java:
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@@ -115,11 +115,13 @@ public Function<Object, Long> inputSizeFn()
*/
public byte[] toBytes(@Nullable Object val)
{
- if (val != null) {
+ if (val == null) {
+ return ByteArrays.EMPTY_ARRAY;
+ } else if (val instanceof byte[]) {
+ return (byte[]) val;
+ } else {
Review Comment:
np! Since the issue is bubbling up from the column value selectors, you can
check who creates those, and why they are returning a byte array instead of the
desired object type.
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