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RelAlgOptimizer.h
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1 /*
2  * Copyright 2017 MapD Technologies, 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 #ifndef QUERYENGINE_RELALGOPTIMIZER_H
18 #define QUERYENGINE_RELALGOPTIMIZER_H
19 
20 #include <memory>
21 #include <unordered_map>
22 #include <unordered_set>
23 #include <vector>
24 
25 class RelAlgNode;
26 
27 std::unordered_map<const RelAlgNode*, std::unordered_set<const RelAlgNode*>> build_du_web(
28  const std::vector<std::shared_ptr<RelAlgNode>>& nodes) noexcept;
29 void eliminate_identical_copy(std::vector<std::shared_ptr<RelAlgNode>>& nodes) noexcept;
30 void eliminate_dead_columns(std::vector<std::shared_ptr<RelAlgNode>>& nodes) noexcept;
31 void fold_filters(std::vector<std::shared_ptr<RelAlgNode>>& nodes) noexcept;
33  std::vector<std::shared_ptr<RelAlgNode>>& nodes) noexcept;
34 void simplify_sort(std::vector<std::shared_ptr<RelAlgNode>>& nodes) noexcept;
36  std::vector<std::shared_ptr<RelAlgNode>>& nodes) noexcept;
37 
38 #endif // QUERYENGINE_RELALGOPTIMIZER_H
std::unordered_map< const RelAlgNode *, std::unordered_set< const RelAlgNode * > > build_du_web(const std::vector< std::shared_ptr< RelAlgNode >> &nodes) noexcept
void hoist_filter_cond_to_cross_join(std::vector< std::shared_ptr< RelAlgNode >> &nodes) noexcept
void sink_projected_boolean_expr_to_join(std::vector< std::shared_ptr< RelAlgNode >> &nodes) noexcept
void eliminate_identical_copy(std::vector< std::shared_ptr< RelAlgNode >> &nodes) noexcept
void simplify_sort(std::vector< std::shared_ptr< RelAlgNode >> &nodes) noexcept
void fold_filters(std::vector< std::shared_ptr< RelAlgNode >> &nodes) noexcept
void eliminate_dead_columns(std::vector< std::shared_ptr< RelAlgNode >> &nodes) noexcept