Merge pull request #249 from alex-310/orderbynull

2023-08-23 13:41:37 +08:00 · 2023-08-23 13:41:37 +08:00 · a4ea274638
parent 37ea6ab487 0b525ce9f5
commit a4ea274638
1 changed files with 5 additions and 1 deletions
--- a/src/ShardingCore/Sharding/Enumerators/StreamMergeAsync/OrderStreamMergeAsyncEnumerator.cs
+++ b/src/ShardingCore/Sharding/Enumerators/StreamMergeAsync/OrderStreamMergeAsyncEnumerator.cs
@ -106,6 +106,10 @@ namespace ShardingCore.Sharding.Enumerators
                {
                    list.Add((IComparable)value);
                }
+                else if (value == null) // Support Nullable<xx>
+                {
+                    list.Add(null);
+                }
                else
                {
                    throw new NotSupportedException($"order by value [{order}] must  implements IComparable");  
@ -142,4 +146,4 @@ namespace ShardingCore.Sharding.Enumerators
 #endif

    }
-}
+}