46 lines
1.7 KiB
C++
46 lines
1.7 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_DES_HEX_STR_
|
|
#define OCEANBASE_SQL_ENGINE_EXPR_OB_EXPR_DES_HEX_STR_
|
|
|
|
#include "common/expression/ob_expr_string_buf.h"
|
|
#include "sql/engine/expr/ob_expr_operator.h"
|
|
|
|
namespace oceanbase
|
|
{
|
|
namespace sql
|
|
{
|
|
class ObExprDesHexStr : public ObFuncExprOperator
|
|
{
|
|
public:
|
|
explicit ObExprDesHexStr(common::ObIAllocator &alloc);
|
|
virtual ~ObExprDesHexStr() {}
|
|
|
|
virtual int calc_result_type1(ObExprResType &type, ObExprResType &type1,
|
|
common::ObExprTypeCtx &type_ctx) const;
|
|
virtual int cg_expr(ObExprCGCtx &op_cg_ctx,
|
|
const ObRawExpr &raw_expr,
|
|
ObExpr &rt_expr) const override;
|
|
static int eval_des_hex_str(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &expr_datum);
|
|
private:
|
|
static int deserialize_hex_cstr(const char *buf,
|
|
int64_t buf_len,
|
|
common::ObExprStringBuf &string_buf,
|
|
common::ObObj &obj);
|
|
private:
|
|
DISALLOW_COPY_AND_ASSIGN(ObExprDesHexStr);
|
|
};
|
|
} // namespace sql
|
|
} // namespace oceanbase
|
|
#endif //OCEANBASE_SQL_ENGINE_EXPR_OB_EXPR_DES_HEX_STR_
|