Package io.trino.plugin.deltalake

Class DeltaLakePageSourceProvider

java.lang.Object

io.trino.plugin.deltalake.DeltaLakePageSourceProvider

All Implemented Interfaces:

ConnectorPageSourceProvider

public class DeltaLakePageSourceProvider
extends Object
implements ConnectorPageSourceProvider

Constructor Summary

Constructors

Constructor	Description
DeltaLakePageSourceProvider(TrinoFileSystemFactory fileSystemFactory, FileFormatDataSourceStats fileFormatDataSourceStats, ParquetReaderConfig parquetReaderConfig, DeltaLakeConfig deltaLakeConfig, TypeManager typeManager)

Method Summary

Modifier and Type	Method	Description
ConnectorPageSource	createPageSource(ConnectorTransactionHandle transaction, ConnectorSession session, ConnectorSplit connectorSplit, ConnectorTableHandle connectorTable, List<ColumnHandle> columns, DynamicFilter dynamicFilter)
static TupleDomain<HiveColumnHandle>	getParquetTupleDomain(TupleDomain<DeltaLakeColumnHandle> effectivePredicate, DeltaLakeSchemaSupport.ColumnMappingMode columnMapping, Map<Integer,String> fieldIdToName)
Map<Integer,String>	loadParquetIdAndNameMapping(TrinoInputFile inputFile, ParquetReaderOptions options)
static Optional<HiveColumnHandle>	toHiveColumnHandle(DeltaLakeColumnHandle deltaLakeColumnHandle, DeltaLakeSchemaSupport.ColumnMappingMode columnMapping, Map<Integer,String> fieldIdToName)

Methods inherited from class java.lang.Object

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

Constructor Details

DeltaLakePageSourceProvider

@Inject
public DeltaLakePageSourceProvider(TrinoFileSystemFactory fileSystemFactory,
 FileFormatDataSourceStats fileFormatDataSourceStats,
 ParquetReaderConfig parquetReaderConfig,
 DeltaLakeConfig deltaLakeConfig,
 TypeManager typeManager)

Method Details

createPageSource

public ConnectorPageSource createPageSource(ConnectorTransactionHandle transaction,
 ConnectorSession session,
 ConnectorSplit connectorSplit,
 ConnectorTableHandle connectorTable,
 List<ColumnHandle> columns,
 DynamicFilter dynamicFilter)

Specified by:

createPageSource in interface ConnectorPageSourceProvider

loadParquetIdAndNameMapping

public Map<Integer,String> loadParquetIdAndNameMapping(TrinoInputFile inputFile,
 ParquetReaderOptions options)

getParquetTupleDomain

public static TupleDomain<HiveColumnHandle> getParquetTupleDomain(TupleDomain<DeltaLakeColumnHandle> effectivePredicate,
 DeltaLakeSchemaSupport.ColumnMappingMode columnMapping,
 Map<Integer,String> fieldIdToName)

toHiveColumnHandle

public static Optional<HiveColumnHandle> toHiveColumnHandle(DeltaLakeColumnHandle deltaLakeColumnHandle,
 DeltaLakeSchemaSupport.ColumnMappingMode columnMapping,
 Map<Integer,String> fieldIdToName)