45 lines
1.9 KiB
C++
45 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_WIDTH_BUCKET_H_
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#define SRC_SQL_ENGINE_EXPR_OB_EXPR_WIDTH_BUCKET_H_
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#include <cstdint>
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#include "sql/engine/expr/ob_expr_res_type.h"
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#include "sql/parser/ob_item_type.h"
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#include "ob_expr_operator.h"
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namespace oceanbase {
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namespace sql {
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class ObExprWidthBucket : public ObFuncExprOperator {
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public:
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explicit ObExprWidthBucket(common::ObIAllocator& alloc);
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virtual ~ObExprWidthBucket()
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{}
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virtual int calc_result_typeN(
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ObExprResType& type, ObExprResType* types, int64_t param_num, common::ObExprTypeCtx& type_ctx) const override;
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virtual int calc_resultN(common::ObObj& res, const common::ObObj* obj_array, int64_t param_num,
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common::ObExprCtx& expr_ctx) const override;
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static int calc_time_type(const int64_t time_usec1, const int64_t time_usec2, const int64_t time_usec3,
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const int16_t time_nsec1, const int16_t time_nsec2, const int16_t time_nsec3,
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const common::ObObjType& target_type, common::ObIAllocator& alloc, common::number::ObNumber& e_nmb,
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common::number::ObNumber& start_nmb, common::number::ObNumber& end_nmb);
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virtual int cg_expr(ObExprCGCtx& expr_cg_ctx, const ObRawExpr& raw_expr, ObExpr& rt_expr) const;
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static int calc_width_bucket_expr(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& res);
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};
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} // namespace sql
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} // namespace oceanbase
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#endif /* _OB_EXPR_WIDTH_BUCKET_H_ */
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