46 lines
1.8 KiB
C++
46 lines
1.8 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_OB_LOG_TEMP_TABLE_TRANSFORMATION_H
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#define OCEANBASE_SQL_OB_LOG_TEMP_TABLE_TRANSFORMATION_H
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#include "sql/resolver/dml/ob_dml_stmt.h"
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#include "sql/optimizer/ob_logical_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 ObLogTempTableTransformation : public ObLogicalOperator
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{
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public:
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ObLogTempTableTransformation(ObLogPlan &plan);
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virtual ~ObLogTempTableTransformation();
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virtual int compute_op_ordering() override;
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virtual bool is_consume_child_1by1() const { return true; }
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virtual int compute_fd_item_set() override;
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virtual int est_cost() override;
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virtual int est_width() override;
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virtual bool is_block_op() const override { return false; }
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virtual bool is_block_input(const int64_t child_idx) const override { return child_idx != get_num_of_child() - 1; }
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virtual int compute_op_parallel_and_server_info() override;
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virtual int do_re_est_cost(EstimateCostInfo ¶m, double &card, double &op_cost, double &cost) override;
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int get_temp_table_exprs(ObIArray<ObRawExpr *> &set_exprs) const;
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int allocate_startup_expr_post() override;
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virtual int get_card_without_filter(double &card) override;
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};
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} // end of namespace sql
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} // end of namespace oceanbase
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#endif // OCEANBASE_SQL_OB_LOG_TEMP_TABLE_TRANSFORMATION_H
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