Package io.trino.parquet.reader

Class TrinoColumnIndexStore

java.lang.Object

io.trino.parquet.reader.TrinoColumnIndexStore

All Implemented Interfaces:

org.apache.parquet.internal.filter2.columnindex.ColumnIndexStore

public class TrinoColumnIndexStore
extends Object
implements org.apache.parquet.internal.filter2.columnindex.ColumnIndexStore

Internal implementation of ColumnIndexStore. Similar to org.apache.parquet.hadoop.ColumnIndexStoreImpl which is not accessible

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.parquet.internal.filter2.columnindex.ColumnIndexStore

org.apache.parquet.internal.filter2.columnindex.ColumnIndexStore.MissingOffsetIndexException

Constructor Summary

Constructors

Constructor	Description
TrinoColumnIndexStore(ParquetDataSource dataSource, org.apache.parquet.hadoop.metadata.BlockMetaData block, Set<org.apache.parquet.hadoop.metadata.ColumnPath> columnsRead, Set<org.apache.parquet.hadoop.metadata.ColumnPath> columnsFiltered)	Creates a column index store which lazily reads column/offset indexes for the columns in paths.

Method Summary

Modifier and Type	Method	Description
org.apache.parquet.internal.column.columnindex.ColumnIndex	getColumnIndex(org.apache.parquet.hadoop.metadata.ColumnPath column)
org.apache.parquet.internal.column.columnindex.OffsetIndex	getOffsetIndex(org.apache.parquet.hadoop.metadata.ColumnPath column)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TrinoColumnIndexStore

public TrinoColumnIndexStore(ParquetDataSource dataSource,
                             org.apache.parquet.hadoop.metadata.BlockMetaData block,
                             Set<org.apache.parquet.hadoop.metadata.ColumnPath> columnsRead,
                             Set<org.apache.parquet.hadoop.metadata.ColumnPath> columnsFiltered)

Creates a column index store which lazily reads column/offset indexes for the columns in paths.

Parameters:

columnsRead - is the set of columns used for projection

columnsFiltered - is the set of columns used for filtering

Method Detail

getColumnIndex

public org.apache.parquet.internal.column.columnindex.ColumnIndex getColumnIndex(org.apache.parquet.hadoop.metadata.ColumnPath column)

Specified by:

getColumnIndex in interface org.apache.parquet.internal.filter2.columnindex.ColumnIndexStore

getOffsetIndex

public org.apache.parquet.internal.column.columnindex.OffsetIndex getOffsetIndex(org.apache.parquet.hadoop.metadata.ColumnPath column)

Specified by:

getOffsetIndex in interface org.apache.parquet.internal.filter2.columnindex.ColumnIndexStore