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2021-05-31 22:56:52 +08:00
commit cea7de1475
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--- a/src/sql/optimizer/ob_log_subplan_scan.h
+++ b/src/sql/optimizer/ob_log_subplan_scan.h
@ -0,0 +1,78 @@
+/**
+ * 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 _OB_LOG_SUBQUERY_SCAN_H_
+#define _OB_LOG_SUBQUERY_SCAN_H_
+#include "sql/optimizer/ob_logical_operator.h"
+
+namespace oceanbase {
+namespace sql {
+class ObLogSubPlanScan : public ObLogicalOperator {
+  public:
+  ObLogSubPlanScan(ObLogPlan& plan)
+      : ObLogicalOperator(plan), subquery_id_(common::OB_INVALID_ID), subquery_name_(), access_exprs_()
+  {}
+
+  ~ObLogSubPlanScan(){};
+  int calc_cost();
+  virtual int est_cost() override;
+  virtual int re_est_cost(const ObLogicalOperator* parent, double need_row_count, bool& re_est) override;
+
+  virtual int copy_without_child(ObLogicalOperator*& out);
+  int allocate_expr_post(ObAllocExprContext& ctx);
+  int allocate_exchange_post(AllocExchContext* ctx) override;
+  int update_weak_part_exprs(AllocExchContext* ctx);
+  int gen_filters();
+  int gen_output_columns();
+  int set_properties();
+  void set_subquery_id(uint64_t subquery_id)
+  {
+    subquery_id_ = subquery_id;
+  }
+  inline const uint64_t& get_subquery_id() const
+  {
+    return subquery_id_;
+  }
+  inline common::ObString& get_subquery_name()
+  {
+    return subquery_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);
+  virtual int transmit_op_ordering();
+  virtual int transmit_local_ordering();
+  virtual int inner_append_not_produced_exprs(ObRawExprUniqueSet& raw_exprs) const;
+  virtual int generate_link_sql_pre(GenLinkStmtContext& link_ctx) override;
+
+  private:
+  virtual int print_operator_for_outline(planText& plan_text);
+  virtual int is_used_join_type_hint(JoinAlgo join_algo, bool& is_used);
+  virtual int is_used_in_leading_hint(bool& is_used);
+
+  private:
+  uint64_t subquery_id_;
+  common::ObString subquery_name_;
+  common::ObSEArray<ObRawExpr*, 4, common::ModulePageAllocator, true> access_exprs_;
+  DISALLOW_COPY_AND_ASSIGN(ObLogSubPlanScan);
+};
+
+}  // end of namespace sql
+}  // end of namespace oceanbase
+
+#endif /* OB_LOG_SUBQUERY_SCAN_H_ */