org.apache.hudi.internal.schema.action

Class InternalSchemaMerger

java.lang.Object

org.apache.hudi.internal.schema.action.InternalSchemaMerger

public class InternalSchemaMerger
extends Object

Auxiliary class. help to merge file schema and query schema to produce final read schema for avro/parquet file

Constructor Summary

Constructors

Constructor and Description
InternalSchemaMerger(InternalSchema fileSchema, InternalSchema querySchema, boolean ignoreRequiredAttribute, boolean useColumnTypeFromFileSchema)
InternalSchemaMerger(InternalSchema fileSchema, InternalSchema querySchema, boolean ignoreRequiredAttribute, boolean useColumnTypeFromFileSchema, boolean useColNameFromFileSchema)

Method Summary

Modifier and Type	Method and Description
InternalSchema	mergeSchema() Create final read schema to read avro/parquet file.
Pair<InternalSchema,Map<String,String>>	mergeSchemaGetRenamed() Create final read schema to read avro/parquet file.

Methods inherited from class java.lang.Object

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

Constructor Detail

InternalSchemaMerger

public InternalSchemaMerger(InternalSchema fileSchema,
                            InternalSchema querySchema,
                            boolean ignoreRequiredAttribute,
                            boolean useColumnTypeFromFileSchema,
                            boolean useColNameFromFileSchema)

InternalSchemaMerger

public InternalSchemaMerger(InternalSchema fileSchema,
                            InternalSchema querySchema,
                            boolean ignoreRequiredAttribute,
                            boolean useColumnTypeFromFileSchema)

Method Detail

mergeSchema

public InternalSchema mergeSchema()

Create final read schema to read avro/parquet file.

Returns:

read schema to read avro/parquet file.

mergeSchemaGetRenamed

public Pair<InternalSchema,Map<String,String>> mergeSchemaGetRenamed()

Create final read schema to read avro/parquet file.

Returns:

read schema to read avro/parquet file.