Update dbms/src/Storages/DeltaMerge/Delta/MemTableSet.h

Co-authored-by: JaySon <tshent@qq.com>
pingcap · Mar 23, 2022 · c203402 · c203402
1 parent 8b19243
commit c203402
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/dbms/src/Storages/DeltaMerge/Delta/MemTableSet.h b/dbms/src/Storages/DeltaMerge/Delta/MemTableSet.h
@@ -37,6 +37,7 @@ class MemTableSet : public std::enable_shared_from_this<MemTableSet>
     /// To avoid serialize the same schema between continuous ColumnFileInMemory and ColumnFileTiny instance.
     BlockPtr last_schema;
 
+    // Note that we must update `column_files_count` for outer thread-safe after `column_files` changed
     ColumnFiles column_files;
     // TODO: check the proper memory_order when use this atomic variable
     std::atomic<size_t> column_files_count;