Github user bhavya411 commented on the issue:
https://github.com/apache/carbondata/pull/1940
This PR Removes the following classes from the PrestoCode
-CarbondataRecordCursor - This class used to get the records row by row
from the iterator, we were using this just as a placeholder for values so this
class was not needed.
-CarbondataRecordSet - This class was used to create the RecordCursor and
since we were not using the Row by Row reader this class is also removed
-CarbondataRecordSetProvider - All the functionality of this class has been
modularized and move to CarbondataPageSourceProvider.
- CarbondataUtil - This class was not used in the actual code.
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