Fixed bug if multiple bulk inserts are used in the same batch

dotnet · Mar 6, 2022 · f60ca2d · f60ca2d
1 parent 96cc0f2
commit f60ca2d
Showing 1 changed file with 8 additions and 1 deletion.
diff --git a/src/EFCore.SqlServer/Update/Internal/SqlServerModificationCommandBatch.cs b/src/EFCore.SqlServer/Update/Internal/SqlServerModificationCommandBatch.cs
@@ -163,7 +163,14 @@ private void AppendBulkInsertCommandText(int lastIndex)
 
         if (resultsContainPositionMapping)
         {
-            ResultsPositionalMappingEnabled ??= new BitArray(CommandResultSet.Count);
+            if (ResultsPositionalMappingEnabled is null)
+            {
+                ResultsPositionalMappingEnabled = new BitArray(CommandResultSet.Count);
+            }
+            else
+            {
+                ResultsPositionalMappingEnabled.Length = CommandResultSet.Count;
+            }
 
             for (var i = lastIndex - _bulkInsertCommands.Count; i < lastIndex; i++)
             {