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// Licensed to the Apache Software Foundation (ASF) under one
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// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
namespace cpp impala
namespace java org.apache.impala.thrift
include "Data.thrift"
include "Types.thrift"
include "CatalogObjects.thrift"
// Serialized, self-contained version of a RowBatch (in be/src/runtime/row-batch.h).
struct TRowBatch {
// total number of rows contained in this batch
1: required i32 num_rows
// row composition
2: required list<Types.TTupleId> row_tuples
// There are a total of num_rows * num_tuples_per_row offsets
// pointing into tuple_data.
// An offset of -1 records a NULL.
3: list<i32> tuple_offsets
// binary tuple data
// TODO: figure out how we can avoid copying the data during TRowBatch construction
4: string tuple_data
// Indicates the type of compression used
5: required CatalogObjects.THdfsCompression compression_type
// Indicates the uncompressed size
6:i32 uncompressed_size
struct TResultSetMetadata {
1: required list<CatalogObjects.TColumn> columns
// List of rows and metadata describing their columns.
struct TResultSet {
1: required list<Data.TResultRow> rows
2: required TResultSetMetadata schema