Package org.apache.drill.exec.physical.impl.metadata

Class Summary

Class	Description
MetadataAggregateHelper	Helper class for constructing aggregate value expressions required for metadata collecting.
MetadataControllerBatch	Terminal operator for producing ANALYZE statement.
MetadataControllerBatchCreator
MetadataHandlerBatch	Responsible for handling metadata returned by incoming aggregate operators and fetching required metadata form the Metastore.
MetadataHandlerBatchCreator
MetadataHashAggBatch
MetadataHashAggBatchCreator
MetadataStreamAggBatch	Operator which adds aggregate calls for all incoming columns to calculate required metadata and produces aggregations.
MetadataStreamAggBatchCreator