| // 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; |
| } |