96 lines
3.5 KiB
C++
96 lines
3.5 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 OB_EXPR_TO_INTERVAL_H
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#define OB_EXPR_TO_INTERVAL_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 ObExprToYMInterval : public ObFuncExprOperator
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{
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public:
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explicit ObExprToYMInterval(common::ObIAllocator &alloc);
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virtual ~ObExprToYMInterval();
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int calc_result_type1(ObExprResType &type, ObExprResType &type1, common::ObExprTypeCtx &type_ctx) const;
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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 calc_to_yminterval(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &expr_datum);
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private:
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DISALLOW_COPY_AND_ASSIGN(ObExprToYMInterval);
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};
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class ObExprToDSInterval : public ObFuncExprOperator
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{
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public:
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explicit ObExprToDSInterval(common::ObIAllocator &alloc);
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virtual ~ObExprToDSInterval();
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int calc_result_type1(ObExprResType &type, ObExprResType &type1, common::ObExprTypeCtx &type_ctx) const;
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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 calc_to_dsinterval(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &expr_datum);
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private:
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DISALLOW_COPY_AND_ASSIGN(ObExprToDSInterval);
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};
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class ObExprNumToYMInterval : public ObFuncExprOperator
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{
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public:
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explicit ObExprNumToYMInterval(common::ObIAllocator &alloc);
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virtual ~ObExprNumToYMInterval();
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int calc_result_type2(ObExprResType &type, ObExprResType &type1, ObExprResType &type2, common::ObExprTypeCtx &type_ctx) const;
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template <class T>
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static int calc_result_common(const T &obj1,
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const T &obj2,
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common::ObIAllocator &calc_buf,
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common::ObIntervalYMValue &ym_value);
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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 calc_num_to_yminterval(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &expr_datum);
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private:
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DISALLOW_COPY_AND_ASSIGN(ObExprNumToYMInterval);
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};
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class ObExprNumToDSInterval : public ObFuncExprOperator
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{
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public:
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explicit ObExprNumToDSInterval(common::ObIAllocator &alloc);
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virtual ~ObExprNumToDSInterval();
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int calc_result_type2(ObExprResType &type, ObExprResType &type1, ObExprResType &type2, common::ObExprTypeCtx &type_ctx) const;
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template <class R, class T>
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static int calc_result_common(R &result,
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const T &obj1,
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const T &obj2,
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common::ObIAllocator &calc_buf);
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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 calc_num_to_dsinterval(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &expr_datum);
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private:
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DISALLOW_COPY_AND_ASSIGN(ObExprNumToDSInterval);
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};
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}
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}
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#endif // OB_EXPR_TO_INTERVAL_H
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