| // 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. |
| |
| // Common protobuf definitions. |
| |
| syntax="proto2"; |
| |
| package impala; |
| |
| // Proto-serialized version of Impala's Status object. |
| message StatusPB { |
| optional int32 status_code = 1; |
| repeated string error_msgs = 2; |
| } |
| |
| // 128-bit ID (equivalent to TUniqueID). |
| message UniqueIdPB { |
| required fixed64 hi = 1; |
| required fixed64 lo = 2; |
| } |
| |
| // The compression codec. Currently used in row batch's header to |
| // indicate the type of compression applied to the row batch. |
| enum CompressionType { |
| NONE = 0; // No compression. |
| LZ4 = 1; |
| } |
| |
| // This is a union over all possible return types. |
| // TODO: if we upgrade to proto3, then we can use the oneof feature in Protobuf 3 in |
| // the following to save some memory because only one of the fields below is set at a |
| // time. |
| message ColumnValuePB { |
| optional bool bool_val = 1; |
| optional int32 byte_val = 6; |
| optional int32 short_val = 7; |
| optional int32 int_val = 2; |
| optional int64 long_val = 3; |
| optional double double_val = 4; |
| optional string string_val = 5; |
| optional string binary_val = 8; |
| optional string timestamp_val = 9; |
| optional bytes decimal_val = 10; |
| } |