65 lines
2.4 KiB
C++
65 lines
2.4 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 OCEANBASE_SQL_OB_LOG_TEMP_TABLE_ACCESS_H
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#define OCEANBASE_SQL_OB_LOG_TEMP_TABLE_ACCESS_H 1
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#include "sql/optimizer/ob_logical_operator.h"
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#include "sql/optimizer/ob_log_operator_factory.h"
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#include "sql/resolver/dml/ob_sql_hint.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 ObLogTempTableAccess : public ObLogicalOperator
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{
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public:
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ObLogTempTableAccess(ObLogPlan &plan);
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virtual ~ObLogTempTableAccess();
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int generate_access_expr();
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virtual int get_op_exprs(ObIArray<ObRawExpr*> &all_exprs) override;
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virtual int allocate_expr_post(ObAllocExprContext &ctx) 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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virtual bool is_block_op() const override { return false; }
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void set_table_id(uint64_t table_id) { table_id_ = table_id; }
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uint64_t get_table_id() const { return table_id_; }
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inline void set_temp_table_id(uint64_t temp_table_id){ temp_table_id_ = temp_table_id; }
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uint64_t get_temp_table_id() const { return temp_table_id_; }
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inline common::ObString &get_table_name() { return temp_table_name_; }
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inline common::ObString &get_access_name() { return access_name_; }
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inline const common::ObIArray<ObRawExpr *> &get_access_exprs() const
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{ return access_exprs_; }
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inline common::ObIArray<ObRawExpr *> &get_access_exprs()
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{ return access_exprs_; }
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virtual int get_plan_item_info(PlanText &plan_text,
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ObSqlPlanItem &plan_item) override;
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int get_temp_table_plan(ObLogicalOperator *& insert_op);
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virtual int get_card_without_filter(double &card) override;
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private:
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DISALLOW_COPY_AND_ASSIGN(ObLogTempTableAccess);
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private:
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uint64_t table_id_;
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uint64_t temp_table_id_;
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common::ObString temp_table_name_;
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common::ObString access_name_;
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// base columns to scan
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common::ObSEArray<ObRawExpr *, 4, common::ModulePageAllocator, true> access_exprs_;
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};
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}
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}
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#endif // OCEANBASE_SQL_OB_LOG_TEMP_TABLE_ACCESS_H
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