57 lines
2.2 KiB
C++
57 lines
2.2 KiB
C++
/**
|
|
* Copyright (c) 2021 OceanBase
|
|
* OceanBase CE is licensed under Mulan PubL v2.
|
|
* You can use this software according to the terms and conditions of the Mulan PubL v2.
|
|
* You may obtain a copy of Mulan PubL v2 at:
|
|
* http://license.coscl.org.cn/MulanPubL-2.0
|
|
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
|
|
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
|
|
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
|
|
* See the Mulan PubL v2 for more details.
|
|
*/
|
|
|
|
#ifndef OCEANBASE_SQL_ENGINE_EXPR_OB_EXPR_ASCII_
|
|
#define OCEANBASE_SQL_ENGINE_EXPR_OB_EXPR_ASCII_
|
|
|
|
#include "sql/engine/expr/ob_expr_operator.h"
|
|
|
|
namespace oceanbase {
|
|
namespace sql {
|
|
class ObExprAscii : public ObFuncExprOperator {
|
|
public:
|
|
explicit ObExprAscii(common::ObIAllocator& alloc);
|
|
virtual ~ObExprAscii(){};
|
|
static int calc(common::ObObj& obj, const common::ObObj& obj1, common::ObExprCtx& expr_ctx);
|
|
|
|
virtual int calc_result_type1(ObExprResType& type, ObExprResType& type1, common::ObExprTypeCtx& type_ctx) const;
|
|
|
|
virtual int calc_result1(common::ObObj& obj, const common::ObObj& obj1, common::ObExprCtx& expr_ctx) const;
|
|
virtual int cg_expr(ObExprCGCtx& expr_cg_ctx, const ObRawExpr& raw_expr, ObExpr& rt_expr) const;
|
|
static int calc_ascii_expr(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& res_datum);
|
|
|
|
private:
|
|
DISALLOW_COPY_AND_ASSIGN(ObExprAscii);
|
|
};
|
|
|
|
class ObExprOrd : public ObFuncExprOperator {
|
|
public:
|
|
explicit ObExprOrd(common::ObIAllocator& alloc);
|
|
virtual ~ObExprOrd(){};
|
|
static int calc(common::ObObj& obj, const common::ObObj& obj1, common::ObExprCtx& expr_ctx);
|
|
|
|
virtual int calc_result_type1(ObExprResType& type, ObExprResType& type1, common::ObExprTypeCtx& type_ctx) const;
|
|
|
|
virtual int calc_result1(common::ObObj& obj, const common::ObObj& obj1, common::ObExprCtx& expr_ctx) const;
|
|
virtual int cg_expr(ObExprCGCtx& expr_cg_ctx, const ObRawExpr& raw_expr, ObExpr& rt_expr) const;
|
|
|
|
static int calc_ord_expr(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& res_datum);
|
|
|
|
private:
|
|
DISALLOW_COPY_AND_ASSIGN(ObExprOrd);
|
|
};
|
|
|
|
} // namespace sql
|
|
} // namespace oceanbase
|
|
|
|
#endif // OCEANBASE_SQL_ENGINE_EXPR_OB_EXPR_ASCII_
|