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RelLeftDeepInnerJoin.h
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1 /*
2  * Copyright 2022 HEAVY.AI, Inc.
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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
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8  * http://www.apache.org/licenses/LICENSE-2.0
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13  * See the License for the specific language governing permissions and
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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)
std::pair< std::shared_ptr< RelLeftDeepInnerJoin >, std::shared_ptr< const RelAlgNode > > create_left_deep_join(const std::shared_ptr< RelAlgNode > &left_deep_join_root)
void rebind_inputs_from_left_deep_join(const RexScalar *rex, const RelLeftDeepInnerJoin *left_deep_join)