fix add minor table to table store

src/storage/compaction/ob_tenant_freeze_info_mgr.cpp

@@ -490,7 +490,7 @@ int ObTenantFreezeInfoMgr::diagnose_min_reserved_snapshot(
         ret = OB_SUCCESS;
       }
     }
-    snapshot_version = std::max(0L, snapshot_gc_ts_ - duration * 1000L * 1000L);
+    snapshot_version = std::max(0L, snapshot_gc_ts_ - duration * 1000L * 1000L * 1000L);
     snapshot_from_type = "undo_retention";
     if (freeze_info.freeze_ts < snapshot_version) {
       snapshot_version = freeze_info.freeze_ts;

src/storage/tablet/ob_tablet_table_store.cpp

@@ -799,11 +799,11 @@ int ObTabletTableStore::build_minor_tables(
           ObSSTable *new_sstable = static_cast<ObSSTable *>(new_table);
           if (sstable->get_meta().get_basic_meta().max_merged_trans_version_
               < new_sstable->get_meta().get_basic_meta().max_merged_trans_version_) {
-            need_add = true;
+            need_add = false;
             LOG_INFO("new sstable max merge trans version not equal to old sstable, "
                 "need add new sstable when table key is same", KPC(sstable), KPC(new_sstable));
           } else {
-            need_add = false;
+            need_add = true; // just keep old sstable
           }
         } else if (ObTableStoreUtil::check_include_by_log_ts_range(*new_table, *table)) {
           LOG_DEBUG("table purged", K(*new_table), K(*table));