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src/sql/engine/expr/ob_expr_int2ip.h Normal file
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/**
* 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_INT2IP_
#define OCEANBASE_SQL_ENGINE_EXPR_OB_EXPR_INT2IP_
#include "sql/engine/expr/ob_expr_operator.h"
namespace oceanbase {
namespace sql {
class ObExprInt2ip : public ObStringExprOperator {
public:
explicit ObExprInt2ip(common::ObIAllocator& alloc);
virtual ~ObExprInt2ip();
virtual int calc_result_type1(ObExprResType& type, ObExprResType& text, common::ObExprTypeCtx& type_ctx) const;
static int calc(common::ObObj& result, const common::ObObj& text, common::ObExprStringBuf& string_buf);
virtual int calc_result1(common::ObObj& result, const common::ObObj& text, common::ObExprCtx& expr_ctx) const;
virtual int cg_expr(ObExprCGCtx& op_cg_ctx, const ObRawExpr& raw_expr, ObExpr& rt_expr) const override;
static int int2ip_varchar(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum);
private:
// helper func
static int int2ip(common::ObObj& result, const int64_t text, common::ObExprStringBuf& string_buf);
static int int2ip(common::ObDatum& result, const int64_t text);
private:
DISALLOW_COPY_AND_ASSIGN(ObExprInt2ip);
};
inline int ObExprInt2ip::calc_result_type1(
ObExprResType& type, ObExprResType& text, common::ObExprTypeCtx& type_ctx) const
{
UNUSED(type_ctx);
UNUSED(text);
type.set_varchar();
type.set_length(common::MAX_IP_ADDR_LENGTH);
type.set_collation_level(common::CS_LEVEL_COERCIBLE);
type.set_default_collation_type();
// set calc type
text.set_calc_type(common::ObIntType);
return common::OB_SUCCESS;
}
} // namespace sql
} // namespace oceanbase
#endif /* OCEANBASE_SQL_ENGINE_EXPR_OB_EXPR_INT2IP_ */