1 | //===----------------------------------------------------------------------===// |
2 | // DuckDB |
3 | // |
4 | // duckdb/optimizer/rule/arithmetic_simplification.hpp |
5 | // |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | |
9 | #pragma once |
10 | |
11 | #include "duckdb/optimizer/rule.hpp" |
12 | |
13 | namespace duckdb { |
14 | |
15 | // The Arithmetic Simplification rule applies arithmetic expressions to which the answer is known (e.g. X + 0 => X, X * |
16 | // 0 => 0) |
17 | class ArithmeticSimplificationRule : public Rule { |
18 | public: |
19 | explicit ArithmeticSimplificationRule(ExpressionRewriter &rewriter); |
20 | |
21 | unique_ptr<Expression> Apply(LogicalOperator &op, vector<reference<Expression>> &bindings, bool &changes_made, |
22 | bool is_root) override; |
23 | }; |
24 | |
25 | } // namespace duckdb |
26 | |