Package org.apache.drill.exec.store.parquet.columnreaders.batchsizing

Interface Summary

Interface	Description
RecordBatchSizerManager.FieldOverflowState	An abstraction to allow column readers attach custom field overflow state

Class Summary

Class	Description
BatchSizingMemoryUtil	Helper class to assist the Flat Parquet reader build batches which adhere to memory sizing constraints
BatchSizingMemoryUtil.ColumnMemoryUsageInfo	A container class to hold a column batch memory usage information.
BatchSizingMemoryUtil.VectorMemoryUsageInfo	Container class which holds memory usage information about a variable length ValueVector; all values are in bytes.
RecordBatchOverflow	Logic for handling batch record overflow; this class essentially serializes overflow vector data in a compact manner so that it is reused for building the next record batch.
RecordBatchOverflow.Builder	Builder class to construct a RecordBatchOverflow object
RecordBatchOverflow.FieldOverflowDefinition	Field overflow definition
RecordBatchOverflow.RecordOverflowDefinition	Record batch definition
RecordBatchSizerManager	This class is tasked with managing all aspects of flat Parquet reader record batch sizing logic.
RecordBatchSizerManager.ColumnMemoryQuota	Field memory quota
RecordBatchSizerManager.FieldOverflowStateContainer	Container object to hold current field overflow state
RecordBatchSizerManager.VarLenColumnBatchStats	Container object to supply variable columns statistics to the batch sizer