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add DEGREES() function that converts radian to degree.

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Monk-Liu
2021-10-13 20:00:57 +08:00
committed by wangzelin.wzl
parent 614d2970e8
commit 75c14d5c88
9 changed files with 180 additions and 5 deletions
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30
src/sql/engine/expr/ob_expr_degrees.h Normal file
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//
// Author:
// liuqifan.lqf@antgroup.com
//
#ifndef OCEANBASE_SQL_ENGINE_EXPR_DEGREES_
#define OCEANBASE_SQL_ENGINE_EXPR_DEGREES_
#include "sql/engine/expr/ob_expr_operator.h"
namespace oceanbase {
namespace sql {
class ObExprDegrees : public ObFuncExprOperator {
public:
explicit ObExprDegrees(common::ObIAllocator &alloc);
virtual ~ObExprDegrees();
virtual int calc_result_type1(ObExprResType &type, ObExprResType &radian, common::ObExprTypeCtx &type_ctx) const;
virtual int calc_result1(common::ObObj &result, const common::ObObj &radian_obj, common::ObExprCtx &expr_ctx) const;
static int calc_degrees_expr(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &res_datum);
virtual int cg_expr(ObExprCGCtx &expr_cg_ctx, const ObRawExpr &raw_expr, ObExpr &rt_expr) const override;
private:
const static double degrees_ratio_;
DISALLOW_COPY_AND_ASSIGN(ObExprDegrees);
};
} // namespace sql
} // namespace oceanbase
#endif