| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // 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 |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // 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 |
| } |
| |