| // Copyright 2011-2015 Quickstep Technologies LLC. |
| // Copyright 2015-2016 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 "types/Type.proto"; |
| |
| enum HashTableImplType { |
| LINEAR_OPEN_ADDRESSING = 0; |
| SEPARATE_CHAINING = 1; |
| SIMPLE_SCALAR_SEPARATE_CHAINING = 2; |
| } |
| |
| // 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; |
| } |