132 lines
4.9 KiB
C++
132 lines
4.9 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 OCEANBASE_SQL_ENGINE_EXPR_OB_EXPR_ABS_
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#define OCEANBASE_SQL_ENGINE_EXPR_OB_EXPR_ABS_
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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 ObExprAbs : public ObExprOperator
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{
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typedef int (*abs_func)(common::ObObj &res, const common::ObObj ¶m, common::ObExprCtx &expr_ctx);
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public:
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virtual int deserialize(const char *buf, const int64_t data_len, int64_t &pos);
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public:
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explicit ObExprAbs(common::ObIAllocator &alloc);
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~ObExprAbs() {};
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virtual int calc_result_type1(ObExprResType &type, ObExprResType &type1,
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common::ObExprTypeCtx &type_ctx) const;
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int set_func(common::ObObjType param_type);
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virtual int assign(const ObExprOperator &other);
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virtual int cg_expr(ObExprCGCtx &expr_cg_ctx,
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const ObRawExpr &raw_expr,
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ObExpr &rt_expr) const override;
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private:
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int set_func_mysql(common::ObObjType param_type);
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int set_func_oracle(common::ObObjType param_type);
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//tinyint, mediumint, smallint, int32
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static int abs_int(common::ObObj &res,
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const common::ObObj ¶m,
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common::ObExprCtx &expr_ctx);
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//int64
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static int abs_int64(common::ObObj &res,
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const common::ObObj ¶m,
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common::ObExprCtx &expr_ctx);
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//utiniyint, umediumint, usmallint
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static int abs_uint(common::ObObj &res,
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const common::ObObj ¶m,
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common::ObExprCtx &expr_ctx);
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//uint32 uint64
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static int abs_uint32_uint64(common::ObObj &res,
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const common::ObObj ¶m,
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common::ObExprCtx &expr_ctx);
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//float
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static int abs_float(common::ObObj &res,
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const common::ObObj ¶m,
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common::ObExprCtx &expr_ctx);
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static int abs_float_double(common::ObObj &res,
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const common::ObObj ¶m,
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common::ObExprCtx &expr_ctx);
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//double
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static int abs_double(common::ObObj &res,
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const common::ObObj ¶m,
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common::ObExprCtx &expr_ctx);
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//ufloat
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static int abs_ufloat_udouble(common::ObObj &res,
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const common::ObObj ¶m,
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common::ObExprCtx &expr_ctx);
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//udouble
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static int abs_udouble(common::ObObj &res,
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const common::ObObj ¶m,
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common::ObExprCtx &expr_ctx);
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//number
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static int abs_number(common::ObObj &res,
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const common::ObObj ¶m,
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common::ObExprCtx &expr_ctx);
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//unumber
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static int abs_unumber(common::ObObj &res,
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const common::ObObj ¶m,
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common::ObExprCtx &expr_ctx);
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//null
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static int abs_null(common::ObObj &res,
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const common::ObObj ¶m,
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common::ObExprCtx &expr_ctx);
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//hexstring
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static int abs_hexstring(common::ObObj &res,
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const common::ObObj ¶m,
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common::ObExprCtx &expr_ctx);
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//year
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static int abs_year(common::ObObj &res,
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const common::ObObj ¶m,
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common::ObExprCtx &expr_ctx);
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//others(datetime, time, varchar,etc)
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static int abs_others_double(common::ObObj &res,
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const common::ObObj ¶m,
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common::ObExprCtx &expr_ctx);
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static int abs_others_number(common::ObObj &res,
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const common::ObObj ¶m,
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common::ObExprCtx &expr_ctx);
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//bit
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static int abs_bit(common::ObObj &res,
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const common::ObObj ¶m,
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common::ObExprCtx &expr_ctx);
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//bit
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static int abs_enum_set(common::ObObj &res,
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const common::ObObj ¶m,
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common::ObExprCtx &expr_ctx);
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//json
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static int abs_json(common::ObObj &res,
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const common::ObObj ¶m,
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common::ObExprCtx &expr_ctx);
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static common::ObObjType calc_param_type(const common::ObObjType orig_param_type,
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const bool is_oracle_mode);
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private:
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DISALLOW_COPY_AND_ASSIGN(ObExprAbs);
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private:
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abs_func func_;
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};
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} // namespace sql
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} // namespace oceanbase
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#endif // OCEANBASE_SQL_ENGINE_EXPR_OB_EXPR_ABS_
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