接口的使用
org.apache.paimon.format.parquet.reader.ColumnReader

使用ColumnReader的程序包

程序包	说明
org.apache.paimon.format.parquet.reader

org.apache.paimon.format.parquet.reader中ColumnReader的使用

实现ColumnReader的org.apache.paimon.format.parquet.reader中的类

限定符和类型	类和说明
class	AbstractColumnReader<VECTOR extends org.apache.paimon.data.columnar.writable.WritableColumnVector> Abstract ColumnReader.
class	ArrayColumnReader Array ColumnReader.
class	BaseVectorizedColumnReader It's column level Parquet reader which is used to read a batch of records for a column, part of the code is referred from Apache Hive and Apache Parquet.
class	BooleanColumnReader Boolean ColumnReader.
class	ByteColumnReader Byte ColumnReader.
class	BytesColumnReader Bytes ColumnReader.
class	DoubleColumnReader Double ColumnReader.
class	FixedLenBytesColumnReader<VECTOR extends org.apache.paimon.data.columnar.writable.WritableColumnVector> Fixed length bytes ColumnReader, just for Decimal.
class	FloatColumnReader Float ColumnReader.
class	IntColumnReader Int ColumnReader.
class	LongColumnReader Long ColumnReader.
class	MapColumnReader Map ColumnReader.
class	RowColumnReader Row ColumnReader.
class	ShortColumnReader Short ColumnReader.
class	TimestampColumnReader Timestamp ColumnReader.

返回ColumnReader的org.apache.paimon.format.parquet.reader中的方法

限定符和类型	方法和说明
static ColumnReader	ParquetSplitReaderUtil.createColumnReader(org.apache.paimon.types.DataType fieldType, org.apache.parquet.schema.Type type, List<org.apache.parquet.column.ColumnDescriptor> columnDescriptors, org.apache.parquet.column.page.PageReadStore pages, int depth)

类型变量类型为ColumnReader的org.apache.paimon.format.parquet.reader中的构造器参数

构造器和说明
RowColumnReader(List<ColumnReader> fieldReaders)