39 lines
1.3 KiB
C++
39 lines
1.3 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 OB_EXPR_VSIZE_H
|
|
#define OB_EXPR_VSIZE_H
|
|
|
|
#include "sql/engine/expr/ob_expr_operator.h"
|
|
|
|
namespace oceanbase {
|
|
namespace sql {
|
|
class ObExprVsize : public ObFuncExprOperator {
|
|
public:
|
|
explicit ObExprVsize(common::ObIAllocator& alloc);
|
|
virtual ~ObExprVsize();
|
|
virtual int calc_result1(common::ObObj& result, const common::ObObj& input, common::ObExprCtx& expr_ctx) const;
|
|
virtual int calc_result_type1(ObExprResType& type, ObExprResType& type1, common::ObExprTypeCtx& type_ctx) const;
|
|
|
|
virtual int cg_expr(ObExprCGCtx& expr_cg_ctx, const ObRawExpr& raw_expr, ObExpr& rt_expr) const;
|
|
static int calc_vsize_expr(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& res);
|
|
|
|
private:
|
|
DISALLOW_COPY_AND_ASSIGN(ObExprVsize);
|
|
|
|
bool is_blob_type(const common::ObObj& input) const;
|
|
};
|
|
} // namespace sql
|
|
} // namespace oceanbase
|
|
|
|
#endif
|