119 lines
5.5 KiB
C++
119 lines
5.5 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_IS_H
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#define _OB_EXPR_IS_H 1
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#include "sql/engine/expr/ob_expr_operator.h"
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namespace oceanbase {
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namespace sql {
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class ObConstRawExpr;
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class ObExprIsBase : public ObRelationalExprOperator {
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public:
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// ObExprIsBase();
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explicit ObExprIsBase(common::ObIAllocator& alloc, ObExprOperatorType type, const char* name);
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virtual ~ObExprIsBase(){};
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int calc_result3(common::ObObj& result, const common::ObObj& obj1, const common::ObObj& obj2,
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const common::ObObj& obj3, common::ObExprCtx& expr_ctx) const;
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int calc_with_int_internal(common::ObObj& result, const common::ObObj& obj1, const common::ObObj& obj2,
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common::ObCastCtx& cast_ctx, bool is_not /* True if IS_NOT */) const;
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int cg_expr_internal(ObExprCGCtx& op_cg_ctx, const ObRawExpr& raw_expr, ObExpr& rt_expr,
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const ObConstRawExpr*& const_param2, const ObConstRawExpr*& const_param3) const;
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int cg_result_type_class(common::ObObjType type, ObExpr::EvalFunc& eval_func, bool is_not, bool is_true) const;
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int calc(common::ObObj& result, const common::ObObj& obj1, const common::ObObj& obj2, const common::ObObj& obj3,
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common::ObCastCtx& cast_ctx) const;
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int calc_result_type3(ObExprResType& type, ObExprResType& type1, ObExprResType& type2, ObExprResType& type3,
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common::ObExprTypeCtx& type_ctx) const;
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virtual int calc_with_null(common::ObObj& result, const common::ObObj& obj1, const common::ObObj& obj2,
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const common::ObObj& obj3, common::ObCastCtx& cast_ctx) const = 0;
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virtual int calc_with_int(common::ObObj& result, const common::ObObj& obj1, const common::ObObj& obj2,
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common::ObCastCtx& cast_ctx) const = 0;
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template <typename T>
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static int is_zero(T number);
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private:
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// types and constants
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private:
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DISALLOW_COPY_AND_ASSIGN(ObExprIsBase);
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// function members
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private:
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// data members
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};
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class ObExprIs : public ObExprIsBase {
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public:
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// ObExprIs() {}
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explicit ObExprIs(common::ObIAllocator& alloc) : ObExprIsBase(alloc, T_OP_IS, N_IS){};
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virtual ~ObExprIs(){};
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virtual int calc_with_null(common::ObObj& result, const common::ObObj& obj1, const common::ObObj& obj2,
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const common::ObObj& obj3, common::ObCastCtx& cast_ctx) const;
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virtual int calc_with_int(
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common::ObObj& result, const common::ObObj& obj1, const common::ObObj& obj2, common::ObCastCtx& cast_ctx) const;
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virtual int cg_expr(ObExprCGCtx& op_cg_ctx, const ObRawExpr& raw_expr, ObExpr& rt_expr) const override;
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static int calc_is_date_int_null(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum);
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static int calc_is_null(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum);
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static int int_is_true(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum);
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static int int_is_false(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum);
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static int float_is_true(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum);
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static int float_is_false(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum);
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static int double_is_true(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum);
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static int double_is_false(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum);
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static int number_is_true(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum);
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static int number_is_false(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum);
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private:
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// types and constants
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private:
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DISALLOW_COPY_AND_ASSIGN(ObExprIs);
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// function members
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private:
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// data members
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};
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class ObExprIsNot : public ObExprIsBase {
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public:
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explicit ObExprIsNot(common::ObIAllocator& alloc) : ObExprIsBase(alloc, T_OP_IS_NOT, N_IS_NOT){};
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virtual ~ObExprIsNot(){};
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virtual int calc_with_null(common::ObObj& result, const common::ObObj& obj1, const common::ObObj& obj2,
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const common::ObObj& obj3, common::ObCastCtx& cast_ctx) const;
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virtual int calc_with_int(
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common::ObObj& result, const common::ObObj& obj1, const common::ObObj& obj2, common::ObCastCtx& cast_ctx) const;
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virtual int cg_expr(ObExprCGCtx& op_cg_ctx, const ObRawExpr& raw_expr, ObExpr& rt_expr) const override;
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static int calc_is_not_null(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum);
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static int int_is_not_true(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum);
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static int int_is_not_false(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum);
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static int float_is_not_true(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum);
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static int float_is_not_false(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum);
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static int double_is_not_true(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum);
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static int double_is_not_false(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum);
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static int number_is_not_true(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum);
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static int number_is_not_false(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum);
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private:
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// types and constants
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private:
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DISALLOW_COPY_AND_ASSIGN(ObExprIsNot);
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// function members
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private:
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// data members
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};
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} // end namespace sql
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} // end namespace oceanbase
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#endif /* _OB_EXPR_IS_H */
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