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src/sql/engine/set/ob_hash_intersect_op.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_BASIC_OB_SET_OB_HASH_INTERSECT_OP_H_
+#define OCEANBASE_BASIC_OB_SET_OB_HASH_INTERSECT_OP_H_
+
+#include "sql/engine/set/ob_hash_set_op.h"
+
+namespace oceanbase {
+namespace sql {
+
+class ObHashIntersectSpec : public ObHashSetSpec {
+  OB_UNIS_VERSION_V(1);
+
+  public:
+  ObHashIntersectSpec(common::ObIAllocator& alloc, const ObPhyOperatorType type);
+};
+
+class ObHashIntersectOp : public ObHashSetOp {
+  public:
+  ObHashIntersectOp(ObExecContext& exec_ctx, const ObOpSpec& spec, ObOpInput* input);
+  ~ObHashIntersectOp()
+  {}
+
+  virtual int inner_open() override;
+  virtual int inner_get_next_row() override;
+  virtual int inner_close() override;
+  virtual int rescan() override;
+  virtual void destroy() override;
+
+  private:
+  int build_hash_table_by_part();
+};
+
+}  // end namespace sql
+}  // end namespace oceanbase
+
+#endif  // OCEANBASE_BASIC_OB_SET_OB_HASH_INTERSECT_OP_H_