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src/sql/optimizer/ob_log_temp_table_access.h

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+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase CE is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+#ifndef OCEANBASE_SQL_OB_LOG_TEMP_TABLE_ACCESS_H
+#define OCEANBASE_SQL_OB_LOG_TEMP_TABLE_ACCESS_H 1
+
+#include "sql/optimizer/ob_logical_operator.h"
+#include "sql/optimizer/ob_log_operator_factory.h"
+#include "sql/optimizer/ob_log_plan.h"
+#include "sql/resolver/dml/ob_sql_hint.h"
+
+namespace oceanbase {
+namespace sql {
+class ObLogTempTableAccess : public ObLogicalOperator {
+  public:
+  ObLogTempTableAccess(ObLogPlan& plan);
+  virtual ~ObLogTempTableAccess();
+  virtual int copy_without_child(ObLogicalOperator*& out)
+  {
+    return clone(out);
+  }
+  virtual int allocate_exchange_post(AllocExchContext* ctx) override;
+  virtual int allocate_expr_post(ObAllocExprContext& ctx) override;
+  virtual int transmit_op_ordering() override;
+  virtual bool is_block_op() const override
+  {
+    return true;
+  }
+  void set_table_id(uint64_t table_id)
+  {
+    table_id_ = table_id;
+  }
+  uint64_t get_table_id() const
+  {
+    return table_id_;
+  }
+  inline void set_ref_table_id(uint64_t ref_table_id)
+  {
+    ref_table_id_ = ref_table_id;
+  }
+  uint64_t get_ref_table_id() const
+  {
+    return ref_table_id_;
+  }
+  void set_last_access(bool is_last)
+  {
+    is_last_access_ = is_last;
+  }
+  bool is_last_access() const
+  {
+    return is_last_access_;
+  }
+  int inner_append_not_produced_exprs(ObRawExprUniqueSet& raw_exprs) const;
+  inline common::ObString& get_table_name()
+  {
+    return temp_table_name_;
+  }
+  inline const common::ObIArray<ObRawExpr*>& get_access_exprs() const
+  {
+    return access_exprs_;
+  }
+  inline common::ObIArray<ObRawExpr*>& get_access_exprs()
+  {
+    return access_exprs_;
+  }
+  virtual int print_my_plan_annotation(char* buf, int64_t& buf_len, int64_t& pos, ExplainType type);
+
+  private:
+  DISALLOW_COPY_AND_ASSIGN(ObLogTempTableAccess);
+
+  private:
+  uint64_t table_id_;
+  uint64_t ref_table_id_;
+  common::ObString temp_table_name_;
+  bool is_last_access_;  // trick part, used to release the memory
+  // base columns to scan
+  common::ObSEArray<ObRawExpr*, 4, common::ModulePageAllocator, true> access_exprs_;
+};
+
+}  // namespace sql
+}  // namespace oceanbase
+
+#endif  // OCEANBASE_SQL_OB_LOG_TEMP_TABLE_ACCESS_H