58 lines
1.9 KiB
C++
58 lines
1.9 KiB
C++
/**
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* Copyright (c) 2021 OceanBase
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* OceanBase CE is licensed under Mulan PubL v2.
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* You can use this software according to the terms and conditions of the Mulan PubL v2.
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* You may obtain a copy of Mulan PubL v2 at:
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* http://license.coscl.org.cn/MulanPubL-2.0
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PubL v2 for more details.
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*/
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#ifndef SRC_SQL_ENGINE_EXPR_OB_EXPR_DATE_H_
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#define SRC_SQL_ENGINE_EXPR_OB_EXPR_DATE_H_
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#include "sql/engine/expr/ob_expr_operator.h"
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namespace oceanbase
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{
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namespace sql
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{
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class ObExprDate : public ObFuncExprOperator
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{
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public:
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explicit ObExprDate(common::ObIAllocator &alloc);
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virtual ~ObExprDate();
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virtual int calc_result_type1(ObExprResType &type,
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ObExprResType &type1,
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common::ObExprTypeCtx &type_ctx) const;
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virtual common::ObCastMode get_cast_mode() const { return CM_NULL_ON_WARN;}
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virtual int cg_expr(ObExprCGCtx &op_cg_ctx,
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const ObRawExpr &raw_expr,
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ObExpr &rt_expr) const override;
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static int eval_date(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &res_datum);
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private :
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//disallow copy
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DISALLOW_COPY_AND_ASSIGN(ObExprDate);
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};
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inline int ObExprDate::calc_result_type1(ObExprResType &type,
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ObExprResType &type1,
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common::ObExprTypeCtx &type_ctx) const
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{
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UNUSED(type_ctx);
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UNUSED(type1);
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type.set_date();
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type.set_scale(common::DEFAULT_SCALE_FOR_DATE);
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//set calc type
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type1.set_calc_type(common::ObDateType);
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type_ctx.set_cast_mode(type_ctx.get_cast_mode() | CM_NULL_ON_WARN);
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return common::OB_SUCCESS;
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}
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}
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}
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#endif /* SRC_SQL_ENGINE_EXPR_OB_EXPR_DATE_H_ */
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