1 | //===----------------------------------------------------------------------===// |
2 | // DuckDB |
3 | // |
4 | // duckdb/optimizer/rule/move_constants.hpp |
5 | // |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | |
9 | #pragma once |
10 | |
11 | #include "duckdb/optimizer/rule.hpp" |
12 | |
13 | namespace duckdb { |
14 | |
15 | // The MoveConstantsRule moves constants to the same side of an expression, e.g. if we have an expression x + 1 = 5000 |
16 | // then this will turn it into x = 4999. |
17 | class MoveConstantsRule : public Rule { |
18 | public: |
19 | explicit MoveConstantsRule(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 | |