query_execution/QueryContext.proto

//   Copyright 2011-2015 Quickstep Technologies LLC.
//   Copyright 2015 Pivotal Software, Inc.
//
//   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/Expressions.proto";
import "expressions/table_generator/GeneratorFunction.proto";
import "storage/AggregationOperationState.proto";
import "storage/HashTable.proto";
import "storage/InsertDestination.proto";
import "types/containers/Tuple.proto";
import "utility/SortConfiguration.proto";

message QueryContext {
  message ScalarGroup {
    repeated Scalar scalars = 1;
  }

  message UpdateGroup {
    message UpdateAssignment {
      required int32 attribute_id = 1;
      required Scalar scalar = 2;
    }

    // NOTE(zuyu): Only used for validating UpdateAssignment's attribute_id.
    required int32 relation_id = 1;
    repeated UpdateAssignment update_assignments = 2;
  }

  repeated AggregationOperationState aggregation_states = 1;
  repeated HashTable join_hash_tables = 2;
  repeated InsertDestination insert_destinations = 3;
  repeated Predicate predicates = 4;
  repeated ScalarGroup scalar_groups = 5;
  repeated SortConfiguration sort_configs = 6;
  repeated Tuple tuples = 7;
  repeated GeneratorFunctionHandle generator_functions = 8;

  // NOTE(zuyu): For UpdateWorkOrder only.
  repeated UpdateGroup update_groups = 9;
}