Package org.apache.paimon.format.parquet.reader

Interface Summary

Interface	Description
ColumnReader<VECTOR extends WritableColumnVector>	Read a batch of records for a column to WritableColumnVector from parquet data file.
ParquetDataColumnReader	The interface to wrap the underlying Parquet dictionary and non dictionary encoded page reader.

Class Summary

Class	Description
AbstractColumnReader<VECTOR extends WritableColumnVector>	Abstract ColumnReader.
BooleanColumnReader	Boolean ColumnReader.
ByteColumnReader	Byte ColumnReader.
BytesColumnReader	Bytes ColumnReader.
DoubleColumnReader	Double ColumnReader.
FixedLenBytesBinaryColumnReader<VECTOR extends WritableColumnVector>	Fixed length bytes ColumnReader, just for Binary.
FixedLenBytesColumnReader<VECTOR extends WritableColumnVector>	Fixed length bytes ColumnReader, just for Decimal.
FixedLenBytesDecimalColumnReader<VECTOR extends WritableColumnVector>	Fixed length bytes ColumnReader, just for Decimal.
FloatColumnReader	Float ColumnReader.
IntColumnReader	Int ColumnReader.
LongColumnReader	Long ColumnReader.
NestedColumnReader	This ColumnReader mainly used to read `Group` type in parquet such as `Map`, `Array`, `Row`.
NestedPositionUtil	Utils to calculate nested type position.
NestedPrimitiveColumnReader	Reader to read nested primitive column.
NestedPrimitiveColumnReader.NullIntIterator	Reading zero always.
NestedPrimitiveColumnReader.RLEIntIterator	Reading int from RunLengthBitPackingHybridDecoder.
NestedPrimitiveColumnReader.ValuesReaderIntIterator	Reading int from ValuesReader.
ParquetDataColumnReaderFactory	Parquet file has self-describing schema which may differ from the user required schema (e.g.
ParquetDecimalVector	Parquet write decimal as int32 and int64 and binary, this class wrap the real vector to provide DecimalColumnVector interface.
ParquetDictionary	Parquet dictionary.
ParquetReadState	Parquet reader state for column index.
ParquetReadState.RowRange	Helper struct to represent a range of row indexes `[start, end]`.
ParquetSplitReaderUtil	Util for generating ColumnReader.
ParquetTimestampVector	Parquet write timestamp precision 0-3 as int64 mills, 4-6 as int64 micros, 7-9 as int96, this class wrap the real vector to provide TimestampColumnVector interface.
RowColumnReader	Row ColumnReader.
ShortColumnReader	Short ColumnReader.
TimestampColumnReader	Timestamp ColumnReader.