566e920620
Co-authored-by: wangt1xiuyi <13547954130@163.com> Co-authored-by: yangqise7en <877793735@qq.com> Co-authored-by: Zach41 <zach_41@163.com>
141 lines
5.4 KiB
C++
141 lines
5.4 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_DIV_H_
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#define _OB_EXPR_DIV_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 ObExprDiv: public ObArithExprOperator
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{
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public:
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ObExprDiv();
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explicit ObExprDiv(common::ObIAllocator &alloc, ObExprOperatorType type = T_OP_DIV);
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virtual ~ObExprDiv() {}
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virtual int calc_result_type2(ObExprResType &type,
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ObExprResType &type1,
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ObExprResType &type2,
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common::ObExprTypeCtx &type_ctx) const;
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static int calc(common::ObObj &res,
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const common::ObObj &obj1,
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const common::ObObj &obj2,
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common::ObIAllocator *allocator,
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common::ObScale calc_scale);
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static int calc_for_avg(common::ObObj &res,
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const common::ObObj &obj1,
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const common::ObObj &obj2,
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common::ObExprCtx &expr_ctx,
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common::ObScale res_scale);
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static int calc_for_avg(common::ObDatum &result,
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const common::ObDatum &sum,
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const int64_t count,
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ObEvalCtx &expr_ctx,
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const common::ObObjType type);
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static int div_float(EVAL_FUNC_ARG_DECL);
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static int div_float_batch(BATCH_EVAL_FUNC_ARG_DECL);
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static int div_double(EVAL_FUNC_ARG_DECL);
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static int div_double_batch(BATCH_EVAL_FUNC_ARG_DECL);
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static int div_number(EVAL_FUNC_ARG_DECL);
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static int div_number_batch(BATCH_EVAL_FUNC_ARG_DECL);
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static int div_intervalym_number(EVAL_FUNC_ARG_DECL);
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static int div_intervalym_number_batch(BATCH_EVAL_FUNC_ARG_DECL);
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static int div_intervalds_number(EVAL_FUNC_ARG_DECL);
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static int div_intervalds_number_batch(BATCH_EVAL_FUNC_ARG_DECL);
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#define DECINC_DIV_EVAL_FUNC_BASIC(L, R) \
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static int div_decimalint_##L##_##R(EVAL_FUNC_ARG_DECL); \
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static int div_decimalint_##L##_##R##_batch(BATCH_EVAL_FUNC_ARG_DECL);
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#define DECINC_DIV_EVAL_FUNC(TYPE) \
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DECINC_DIV_EVAL_FUNC_BASIC(TYPE, 32) \
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DECINC_DIV_EVAL_FUNC_BASIC(TYPE, 64) \
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DECINC_DIV_EVAL_FUNC_BASIC(TYPE, 128) \
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DECINC_DIV_EVAL_FUNC_BASIC(TYPE, 256) \
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DECINC_DIV_EVAL_FUNC_BASIC(TYPE, 512)
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#define DECINC_DIV_EVAL_FUNC_WITH_CHECK(TYPE) \
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static int div_decimalint_512_##TYPE##_with_check(EVAL_FUNC_ARG_DECL); \
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static int div_decimalint_512_##TYPE##_with_check_batch(BATCH_EVAL_FUNC_ARG_DECL);
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DECINC_DIV_EVAL_FUNC(32)
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DECINC_DIV_EVAL_FUNC(64)
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DECINC_DIV_EVAL_FUNC(128)
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DECINC_DIV_EVAL_FUNC(256)
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DECINC_DIV_EVAL_FUNC(512)
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DECINC_DIV_EVAL_FUNC_WITH_CHECK(32)
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DECINC_DIV_EVAL_FUNC_WITH_CHECK(64)
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DECINC_DIV_EVAL_FUNC_WITH_CHECK(128)
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DECINC_DIV_EVAL_FUNC_WITH_CHECK(256)
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DECINC_DIV_EVAL_FUNC_WITH_CHECK(512)
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#undef DECINC_DIV_EVAL_FUNC_WITH_CHECK
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#undef DECINC_DIV_EVAL_FUNC
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#undef DECINC_DIV_EVAL_FUNC_BASIC
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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 div_float(common::ObObj &res,
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const common::ObObj &left,
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const common::ObObj &right,
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common::ObIAllocator *allocator,
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common::ObScale scale);
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static int div_double(common::ObObj &res,
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const common::ObObj &left,
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const common::ObObj &right,
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common::ObIAllocator *allocator,
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common::ObScale scale);
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static int div_double_no_overflow(common::ObObj &res,
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const common::ObObj &left,
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const common::ObObj &right,
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common::ObIAllocator *allocator,
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common::ObScale scale);
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static int div_number(common::ObObj &res,
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const common::ObObj &left,
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const common::ObObj &right,
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common::ObIAllocator *allocator,
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common::ObScale calc_scale);
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static int div_interval(common::ObObj &res,
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const common::ObObj &left,
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const common::ObObj &right,
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common::ObIAllocator *allocator,
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common::ObScale calc_scale);
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DISALLOW_COPY_AND_ASSIGN(ObExprDiv);
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private:
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static ObArithFunc div_funcs_[common::ObMaxTC];
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static ObArithFunc avg_div_funcs_[common::ObMaxTC];
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static const common::ObScale DIV_CALC_SCALE;
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static const common::ObScale DIV_MAX_CALC_SCALE;
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};
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// Div expr for aggregation, different with ObExprDiv:
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// No overflow check for double type.
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class ObExprAggDiv : public ObExprDiv
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{
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public:
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explicit ObExprAggDiv(common::ObIAllocator &alloc)
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: ObExprDiv(alloc, T_OP_AGG_DIV)
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{
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}
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};
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}
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}
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#endif /* _OB_EXPR_DIV_H_ */
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