Package org.apache.drill.exec.store.parquet.columnreaders
package org.apache.drill.exec.store.parquet.columnreaders
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ClassesClassDescriptionBase strategy for reading a batch of Parquet records.Strategy for reading a record batch when all columns are fixed-width.Strategy for reading mock records.Strategy for reading a record batch when at last one column is variable width.ColumnReader<V extends ValueVector>Old versions of Drill were writing a non-standard format for date.Old versions of Drill were writing a non-standard format for date.NullableVarLengthValuesColumn<V extends ValueVector>Represents a single column read from the Parquet file by the record reader.Mapping from the schema of the Parquet file to that of the record reader to the schema that Drill and the Parquet reader uses.Internal state for reading from a Parquet file.Class which handles reading a batch of rows from a set of variable columnsVarLenColumnBulkInput<V extends ValueVector>Implements the
VarLenBulkInputinterface to optimize data copyVarLengthColumn<V extends ValueVector>VarLengthValuesColumn<V extends ValueVector>This class is responsible for processing serialized overflow data (generated in a previous batch); this way overflow data becomes an input source and is thus a) efficiently re-loaded into the current batch ValueVector and b) subjected to the same batching constraints rules.