andygrove commented on issue #2214:
URL:
https://github.com/apache/datafusion-comet/issues/2214#issuecomment-3290175959
I started debugging this, and `CometHashAggregates.missingInputs` contains
values, which leads to the warnings.
In `CometHashAggregateExec`, I updated the code:
```
override def stringArgs: Iterator[Any] =
Iterator(input, mode, groupingExpressions, aggregateExpressions, child,
"missing", missingInput)
```
Here is an example output:
```
!CometHashAggregate [_2#7, count#25L], Final, [_2#7], [count(_1#6)],
missing, {count(_1)#21L, count(_1#6)#20L}
+- CometExchange hashpartitioning(_2#7, 10), ENSURE_REQUIREMENTS,
CometNativeShuffle, [plan_id=211]
+- !CometHashAggregate [_1#6, _2#7], Partial, [_2#7],
[partial_count(_1#6)], missing, {count#25L}
+- CometScan [native_iceberg_compat] parquet [_1#6,_2#7] ...
ReadSchema: struct<_1:int,_2:int>
```
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