54 lines
2.1 KiB
C++
54 lines
2.1 KiB
C++
/**
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* Copyright (c) 2023 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_SQL_EXPR_FORMAT_BYTES_H
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#define _OB_SQL_EXPR_FORMAT_BYTES_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 ObExprFormatBytes: public ObFuncExprOperator
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{
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public:
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explicit ObExprFormatBytes(common::ObIAllocator &alloc);
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virtual ~ObExprFormatBytes();
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virtual int calc_result_type1(ObExprResType &type,
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ObExprResType &type1,
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common::ObExprTypeCtx &type_ctx) const;
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virtual int cg_expr(ObExprCGCtx &expr_cg_ctx, const ObRawExpr &raw_expr,
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ObExpr &rt_expr) const override;
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static int eval_format_bytes(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &expr_datum);
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static int eval_format_bytes_batch(const ObExpr &expr,
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ObEvalCtx &ctx,
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const ObBitVector &skip,
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const int64_t batch_size);
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static int eval_format_bytes_util(const ObExpr &expr, ObDatum &res_datum,
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ObDatum *param1, ObEvalCtx &ctx, int64_t index = 0);
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static const common::ObLength VALUE_BUF_LEN = 20; //value's string buffer length
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static const common::ObLength LENGTH_FORMAT_BYTES = 11;
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private:
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DISALLOW_COPY_AND_ASSIGN(ObExprFormatBytes);
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static const uint64_t kib = 1024;
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static const uint64_t mib = 1024 * kib;
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static const uint64_t gib = 1024 * mib;
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static const uint64_t tib = 1024 * gib;
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static const uint64_t pib = 1024 * tib;
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static const uint64_t eib = 1024 * pib;
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};
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}
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}
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#endif /* _OB_SQL_EXPR_FORMAT_BYTES_H */
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