diff --git a/src/FirebirdSql.EntityFrameworkCore.Firebird.FunctionalTests/Query/NorthwindSelectQueryFbTest.cs b/src/FirebirdSql.EntityFrameworkCore.Firebird.FunctionalTests/Query/NorthwindSelectQueryFbTest.cs
index ccfb89ed9..a3dcdf99e 100644
--- a/src/FirebirdSql.EntityFrameworkCore.Firebird.FunctionalTests/Query/NorthwindSelectQueryFbTest.cs
+++ b/src/FirebirdSql.EntityFrameworkCore.Firebird.FunctionalTests/Query/NorthwindSelectQueryFbTest.cs
@@ -206,6 +206,13 @@ public override Task Reverse_in_SelectMany_with_Take(bool async)
 		return base.Reverse_in_SelectMany_with_Take(async);
 	}
 
+	[NotSupportedOnFirebirdTheory]
+	[MemberData(nameof(IsAsyncData))]
+	public override Task Set_operation_in_pending_collection(bool async)
+	{
+		return base.Set_operation_in_pending_collection(async);
+	}
+
 	[Theory]
 	[MemberData(nameof(IsAsyncData))]
 	public override async Task Correlated_collection_after_distinct_with_complex_projection_not_containing_original_identifier(bool async)
diff --git a/src/FirebirdSql.EntityFrameworkCore.Firebird.FunctionalTests/Query/NorthwindSetOperationsQueryFbTest.cs b/src/FirebirdSql.EntityFrameworkCore.Firebird.FunctionalTests/Query/NorthwindSetOperationsQueryFbTest.cs
index 8cc93dc55..1c81f0cf2 100644
--- a/src/FirebirdSql.EntityFrameworkCore.Firebird.FunctionalTests/Query/NorthwindSetOperationsQueryFbTest.cs
+++ b/src/FirebirdSql.EntityFrameworkCore.Firebird.FunctionalTests/Query/NorthwindSetOperationsQueryFbTest.cs
@@ -100,6 +100,20 @@ public override Task Union_Intersect(bool async)
 		return base.Union_Intersect(async);
 	}
 
+	[NotSupportedOnFirebirdTheory]
+	[MemberData(nameof(IsAsyncData))]
+	public override Task Except_on_distinct(bool async)
+	{
+		return base.Except_on_distinct(async);
+	}
+
+	[NotSupportedOnFirebirdTheory]
+	[MemberData(nameof(IsAsyncData))]
+	public override Task Intersect_on_distinct(bool async)
+	{
+		return base.Intersect_on_distinct(async);
+	}
+
 	[Theory]
 	[MemberData(nameof(IsAsyncData))]
 	public override Task Client_eval_Union_FirstOrDefault(bool async)