[scn] fix failure of mittest after refresh feature scn

src/share/ob_table_range.h

@@ -0,0 +1,78 @@
+/*
+ * (C) Copyright 2022 Alipay Inc. All Rights Reserved.
+ * Authors:
+ *     Danling <fengjingkun.fjk@antgroup.com>
+ */
+
+#ifndef OCEANBASE_SHARE_OB_TABLE_RANGE_H_
+#define OCEANBASE_SHARE_OB_TABLE_RANGE_H_
+
+#include "logservice/palf/scn.h"
+
+namespace oceanbase
+{
+namespace palf
+{
+  class SCN;
+}
+
+namespace share
+{
+
+struct ObScnRange
+{
+  OB_UNIS_VERSION(1);
+public:
+  static const palf::SCN MIN_SCN;
+  static const palf::SCN MAX_SCN;
+  static const int64_t MIN_TS;
+  static const int64_t MAX_TS;
+  static const int64_t OLD_MAX_TS;
+
+  ObScnRange();
+  int64_t hash() const;
+
+  OB_INLINE void reset()
+  {
+    start_scn_ = MIN_SCN;
+    end_scn_ = MIN_SCN;
+  }
+
+  OB_INLINE bool is_valid() const
+  {
+    return start_scn_.is_valid() && end_scn_.is_valid() && end_scn_ >= start_scn_;
+  }
+
+  OB_INLINE bool is_empty() const
+  {
+    return end_scn_ == start_scn_;
+  }
+
+  OB_INLINE bool operator == (const ObScnRange &range) const
+  {
+    return start_scn_ == range.start_scn_
+        && end_scn_ == range.end_scn_;
+  }
+
+  OB_INLINE bool operator != (const ObScnRange &range) const
+  {
+    return !this->operator==(range);
+  }
+
+  OB_INLINE bool contain(const palf::SCN &scn) const
+  {
+    return is_valid() && start_scn_ < scn
+      && end_scn_ >= scn;
+  }
+  TO_STRING_KV(K_(start_scn), K_(end_scn));
+
+public:
+  palf::SCN start_scn_;
+  palf::SCN end_scn_;
+};
+
+
+} //namespace share
+} //namespace oceanbase
+
+#endif //OCEANBASE_SHARE_OB_TABLE_RANGE_H_