OmniSciDB  5ade3759e0
RelLeftDeepInnerJoin.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 #pragma once
18 
19 #include <memory>
20 #include <vector>
21 
22 class RelAlgNode;
24 class RexScalar;
25 
26 // Gets the start node of a left-deep pattern starting at the node itself or its child.
27 std::shared_ptr<const RelAlgNode> get_left_deep_join_root(
28  const std::shared_ptr<RelAlgNode>& node);
29 
30 void create_left_deep_join(std::vector<std::shared_ptr<RelAlgNode>>& nodes);
31 
33  const RelLeftDeepInnerJoin* left_deep_join);
std::shared_ptr< const RelAlgNode > get_left_deep_join_root(const std::shared_ptr< RelAlgNode > &node)
void rebind_inputs_from_left_deep_join(const RexScalar *rex, const RelLeftDeepInnerJoin *left_deep_join)
void create_left_deep_join(std::vector< std::shared_ptr< RelAlgNode >> &nodes)