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// 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.
syntax = "proto2";
package quickstep.serialization;
import "types/Type.proto";
enum HashTableImplType {
COLLISION_FREE_VECTOR = 0;
LINEAR_OPEN_ADDRESSING = 1;
SEPARATE_CHAINING = 2;
SIMPLE_SCALAR_SEPARATE_CHAINING = 3;
THREAD_PRIVATE_COMPACT_KEY = 4;
}
message CollisionFreeVectorInfo {
required uint64 memory_size = 1;
required uint64 num_init_partitions = 2;
repeated uint64 state_offsets = 3;
}
// NOTE(chasseur): This proto describes the run-time parameters for a resizable
// HashTable. It does not describe any template parameters of the HashTable
// class, which are different in different contexts (e.g. join vs. grouping).
message HashTable {
required HashTableImplType hash_table_impl_type = 1;
repeated Type key_types = 2;
required uint64 estimated_num_entries = 3;
}