tmwangi opened a new issue #5691:
URL: https://github.com/apache/incubator-pinot/issues/5691
Currently Group By on a BYTES typed column does not work. The error I get is:
```
org.apache.pinot.client.PinotClientException: Query had processing
exceptions:
[{"errorCode":200,"message":"QueryExecutionError:
java.lang.IllegalArgumentException: Illegal data type for no-dictionary key
generator: BYTES
at
org.apache.pinot.core.query.aggregation.groupby.NoDictionarySingleColumnGroupKeyGenerator.createGroupKeyMap(NoDictionarySingleColumnGroupKeyGenerator.java:149)
at
org.apache.pinot.core.query.aggregation.groupby.NoDictionarySingleColumnGroupKeyGenerator.<init>(NoDictionarySingleColumnGroupKeyGenerator.java:58)
at
org.apache.pinot.core.query.aggregation.groupby.DefaultGroupByExecutor.<init>(DefaultGroupByExecutor.java:102)
at
org.apache.pinot.core.operator.query.AggregationGroupByOrderByOperator.getNextBlock(AggregationGroupByOrderByOperator.java:101)
at
org.apache.pinot.core.operator.query.AggregationGroupByOrderByOperator.getNextBlock(AggregationGroupByOrderByOperator.java:38)
at
org.apache.pinot.core.operator.BaseOperator.nextBlock(BaseOperator.java:49)
at
org.apache.pinot.core.operator.CombineGroupByOrderByOperator$1.runJob(CombineGroupByOrderByOperator.java:134)
at
org.apache.pinot.core.util.trace.TraceRunnable.run(TraceRunnable.java:40)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at
```
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