Fix pagination fields losing parallel execution

src/HotChocolate/Core/src/Types.CursorPagination/ConnectionType.cs

@@ -182,7 +182,7 @@ private static ObjectTypeConfiguration CreateConfiguration(
                 edgesType,
                 pureResolver: GetEdges)
             {
-                Flags = CoreFieldFlags.ConnectionEdgesField
+                Flags = CoreFieldFlags.ParallelExecutable | CoreFieldFlags.ConnectionEdgesField
             });
 
         if (includeNodesField)
@@ -193,7 +193,7 @@ private static ObjectTypeConfiguration CreateConfiguration(
                     ConnectionType_Nodes_Description,
                     pureResolver: GetNodes)
                 {
-                    Flags = CoreFieldFlags.ConnectionNodesField
+                    Flags = CoreFieldFlags.ParallelExecutable | CoreFieldFlags.ConnectionNodesField
                 });
         }
 
@@ -206,7 +206,7 @@ private static ObjectTypeConfiguration CreateConfiguration(
                     type: TypeReference.Parse($"{ScalarNames.Int}!"),
                     pureResolver: GetTotalCount)
                 {
-                    Flags = CoreFieldFlags.TotalCount
+                    Flags = CoreFieldFlags.ParallelExecutable | CoreFieldFlags.TotalCount
                 });
         }
 

src/HotChocolate/Core/src/Types.OffsetPagination/CollectionSegmentType~1.cs

@@ -99,7 +99,7 @@ private static ObjectTypeConfiguration CreateConfiguration(bool withTotalCount)
             Names.Items,
             CollectionSegmentType_Items_Description,
             pureResolver: GetItems)
-        { Flags = CoreFieldFlags.CollectionSegmentItemsField });
+        { Flags = CoreFieldFlags.ParallelExecutable | CoreFieldFlags.CollectionSegmentItemsField });
 
         if (withTotalCount)
         {
@@ -108,7 +108,7 @@ private static ObjectTypeConfiguration CreateConfiguration(bool withTotalCount)
                 type: TypeReference.Parse($"{ScalarNames.Int}!"),
                 pureResolver: GetTotalCount)
             {
-                Flags = CoreFieldFlags.TotalCount
+                Flags = CoreFieldFlags.ParallelExecutable | CoreFieldFlags.TotalCount
             });
         }
 

src/HotChocolate/Core/test/Types.CursorPagination.Tests/ConnectionTypeTests.cs

@@ -0,0 +1,38 @@
+using HotChocolate.Execution;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace HotChocolate.Types.Pagination;
+
+public class ConnectionTypeTests
+{
+    [Fact]
+    public async Task Fields_Should_BeParallelExecutable_When_GlobalFieldMiddlewareIsRegistered()
+    {
+        // arrange
+        var schema = await new ServiceCollection()
+            .AddGraphQL()
+            .AddQueryType<Query>()
+            .UseField(next => next)
+            .BuildSchemaAsync(cancellationToken: TestContext.Current.CancellationToken);
+
+        // act
+        var fields = schema.Types.GetType<ObjectType>("NamesConnection").Fields
+            .Where(field => !field.IsIntrospectionField)
+            .Select(field => $"{field.Name}: {field.IsParallelExecutable}");
+
+        // assert
+        string.Join("\n", fields).MatchInlineSnapshot(
+            """
+            pageInfo: True
+            edges: True
+            nodes: True
+            totalCount: True
+            """);
+    }
+
+    public class Query
+    {
+        [UsePaging(IncludeTotalCount = true)]
+        public IEnumerable<string> GetNames() => ["a", "b"];
+    }
+}

src/HotChocolate/Core/test/Types.OffsetPagination.Tests/CollectionSegmentTypeTests.cs

@@ -0,0 +1,37 @@
+using HotChocolate.Execution;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace HotChocolate.Types.Pagination;
+
+public class CollectionSegmentTypeTests
+{
+    [Fact]
+    public async Task Fields_Should_BeParallelExecutable_When_GlobalFieldMiddlewareIsRegistered()
+    {
+        // arrange
+        var schema = await new ServiceCollection()
+            .AddGraphQL()
+            .AddQueryType<Query>()
+            .UseField(next => next)
+            .BuildSchemaAsync(cancellationToken: TestContext.Current.CancellationToken);
+
+        // act
+        var fields = schema.Types.GetType<ObjectType>("NamesCollectionSegment").Fields
+            .Where(field => !field.IsIntrospectionField)
+            .Select(field => $"{field.Name}: {field.IsParallelExecutable}");
+
+        // assert
+        string.Join("\n", fields).MatchInlineSnapshot(
+            """
+            pageInfo: True
+            items: True
+            totalCount: True
+            """);
+    }
+
+    public class Query
+    {
+        [UseOffsetPaging(IncludeTotalCount = true)]
+        public IEnumerable<string> GetNames() => ["a", "b"];
+    }
+}