storage/WindowAggregationOperationState.proto

//   Copyright 2011-2015 Quickstep Technologies LLC.
//   Copyright 2015-2016 Pivotal Software, Inc.
//   Copyright 2016, Quickstep Research Group, Computer Sciences Department,
//     University of Wisconsin—Madison.
//
//   Licensed 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.

syntax = "proto2";

package quickstep.serialization;

import "expressions/aggregation/AggregateFunction.proto";
import "expressions/Expressions.proto";

message WindowAggregationOperationState {
  required int32 relation_id = 1;
  required AggregateFunction function = 2;
  repeated Scalar arguments = 3;
  repeated Scalar partition_by_attributes = 4;
  required bool is_row = 5;
  required int64 num_preceding = 6;  // -1 means UNBOUNDED PRECEDING.
  required int64 num_following = 7;  // -1 means UNBOUNDED FOLLOWING.
}