[scn] fix failure of mittest after refresh feature scn

src/share/ob_table_range.cpp

@@ -0,0 +1,67 @@
+/*
+ * (C) Copyright 2022 Alipay Inc. All Rights Reserved.
+ * Authors:
+ *     Danling <fengjingkun.fjk@antgroup.com>
+ */
+
+#include "ob_table_range.h"
+
+
+namespace oceanbase
+{
+using palf::SCN;
+
+namespace share
+{
+const palf::SCN ObScnRange::MIN_SCN = palf::SCN::min_scn();
+const palf::SCN ObScnRange::MAX_SCN = palf::SCN::max_scn();
+
+const int64_t ObScnRange::MIN_TS = palf::OB_MIN_SCN_TS_NS;
+const int64_t ObScnRange::MAX_TS = palf::OB_MAX_SCN_TS_NS;
+const int64_t ObScnRange::OLD_MAX_TS = INT64_MAX;
+
+ObScnRange::ObScnRange()
+  : start_scn_(MIN_SCN),
+    end_scn_(MIN_SCN)
+{
+}
+
+OB_DEF_SERIALIZE(ObScnRange)
+{
+  using oceanbase::common::serialization::encode;
+  int ret = OB_SUCCESS;
+  LST_DO_CODE(OB_UNIS_ENCODE, start_scn_, end_scn_);
+  return ret;
+}
+
+OB_DEF_DESERIALIZE(ObScnRange)
+{
+  using oceanbase::common::serialization::decode;
+  int ret = OB_SUCCESS;
+  LST_DO_CODE(OB_UNIS_DECODE, start_scn_, end_scn_);
+
+  if (OB_SUCC(ret)) {
+    (void)end_scn_.transform_max();
+  }
+  return ret;
+}
+
+OB_DEF_SERIALIZE_SIZE(ObScnRange)
+{
+  using oceanbase::common::serialization::encoded_length;
+  int64_t len = 0;
+  LST_DO_CODE(OB_UNIS_ADD_LEN, start_scn_, end_scn_);
+  return len;
+}
+
+int64_t ObScnRange::hash() const
+{
+  int64_t hash_value = 0;
+  hash_value = common::murmurhash(&start_scn_, sizeof(start_scn_), hash_value);
+  hash_value = common::murmurhash(&end_scn_, sizeof(end_scn_), hash_value);
+  return hash_value;
+}
+
+
+} //share
+} //oceanbase