Package io.trino.plugin.deltalake

Class DeltaLakeParquetSchemas

java.lang.Object

io.trino.plugin.deltalake.DeltaLakeParquetSchemas

public final class DeltaLakeParquetSchemas
extends Object

Delta Lake specific utility which converts the Delta table schema to a Parquet schema. This utility is used instead of Hive's ParquetSchemaConverter in order to be able to include the field IDs in the Parquet schema.

Method Summary

Modifier and Type	Method	Description
static DeltaLakeParquetSchemaMapping	createParquetSchemaMapping(MetadataEntry metadataEntry, ProtocolEntry protocolEntry, TypeManager typeManager)
static DeltaLakeParquetSchemaMapping	createParquetSchemaMapping(MetadataEntry metadataEntry, ProtocolEntry protocolEntry, TypeManager typeManager, boolean addChangeDataFeedFields)
static DeltaLakeParquetSchemaMapping	createParquetSchemaMapping(String jsonSchema, TypeManager typeManager, DeltaLakeSchemaSupport.ColumnMappingMode columnMappingMode, List<String> partitionColumnNames)

Methods inherited from class java.lang.Object

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

Method Details

createParquetSchemaMapping

public static DeltaLakeParquetSchemaMapping createParquetSchemaMapping(MetadataEntry metadataEntry,
 ProtocolEntry protocolEntry,
 TypeManager typeManager)

createParquetSchemaMapping

public static DeltaLakeParquetSchemaMapping createParquetSchemaMapping(MetadataEntry metadataEntry,
 ProtocolEntry protocolEntry,
 TypeManager typeManager,
 boolean addChangeDataFeedFields)

createParquetSchemaMapping

public static DeltaLakeParquetSchemaMapping createParquetSchemaMapping(String jsonSchema,
 TypeManager typeManager,
 DeltaLakeSchemaSupport.ColumnMappingMode columnMappingMode,
 List<String> partitionColumnNames)