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EquiJoinCondition.h
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2  * Copyright 2022 HEAVY.AI, Inc.
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4  * Licensed under the Apache License, Version 2.0 (the "License");
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16 
17 #ifndef QUERYENGINE_EQUIJOINCONDITION_H
18 #define QUERYENGINE_EQUIJOINCONDITION_H
19 
20 #include <list>
21 #include <memory>
22 
23 namespace Analyzer {
24 class BinOper;
25 class Expr;
26 } // namespace Analyzer
27 
28 // Go through the qualifiers and group consecutive equality operators to create
29 // a list of composite join conditions.
30 std::list<std::shared_ptr<Analyzer::Expr>> combine_equi_join_conditions(
31  const std::list<std::shared_ptr<Analyzer::Expr>>& join_quals);
32 
33 std::list<std::shared_ptr<Analyzer::Expr>> coalesce_singleton_equi_join(
34  const std::shared_ptr<Analyzer::BinOper>& join_qual);
35 
36 #endif // QUERYENGINE_EQUIJOINCONDITION_H
std::list< std::shared_ptr< Analyzer::Expr > > coalesce_singleton_equi_join(const std::shared_ptr< Analyzer::BinOper > &join_qual)
std::list< std::shared_ptr< Analyzer::Expr > > combine_equi_join_conditions(const std::list< std::shared_ptr< Analyzer::Expr >> &join_quals)