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TableOptimizer.h
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1 /*
2  * Copyright 2019 OmniSci, Inc.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #pragma once
18 
19 #include "Catalog/Catalog.h"
20 
21 class Executor;
22 
32  public:
34  Executor* executor,
35  const Catalog_Namespace::Catalog& cat);
36 
43  void recomputeMetadata() const;
44 
52  void vacuumDeletedRows() const;
53 
54  private:
56  Executor* executor_;
58 };
Executor(const int db_id, const size_t block_size_x, const size_t grid_size_x, const std::string &debug_dir, const std::string &debug_file,::QueryRenderer::QueryRenderManager *render_manager)
Definition: Execute.cpp:106
class for a per-database catalog. also includes metadata for the current database and the current use...
Definition: Catalog.h:81
Driver for running cleanup processes on a table. TableOptimizer provides functions for various cleanu...
const TableDescriptor * td_
This file contains the class specification and related data structures for Catalog.
Executor * executor_
void vacuumDeletedRows() const
Compacts fragments to remove deleted rows. When a row is deleted, a boolean deleted system column is ...
TableOptimizer(const TableDescriptor *td, Executor *executor, const Catalog_Namespace::Catalog &cat)
specifies the content in-memory of a row in the table metadata table
const Catalog_Namespace::Catalog & cat_
void recomputeMetadata() const
Recomputes per-chunk metadata for each fragment in the table. Updates and deletes can cause chunk met...