diff --git a/lib/execution/executors/executor_test/btree_index_executor_test.go b/lib/execution/executors/executor_test/btree_index_executor_test.go
index 76deb5a4..be16042b 100644
--- a/lib/execution/executors/executor_test/btree_index_executor_test.go
+++ b/lib/execution/executors/executor_test/btree_index_executor_test.go
@@ -127,9 +127,9 @@ func testBTreeParallelTxnStrideRoot[T int32 | float32 | string](t *testing.T, ke
 
 		//InnerTestParallelTxnsQueryingIndexUsedColumns[T](t, keyType, 800, 30000, 13, 0, bpoolSize, index_constants.INDEX_KIND_BTREE, PARALLEL_EXEC, 20)
 
-		InnerTestParallelTxnsQueryingIndexUsedColumns[T](t, keyType, 800, 1000, 13, 0, bpoolSize, index_constants.INDEX_KIND_BTREE, SERIAL_EXEC, 1)
+		//InnerTestParallelTxnsQueryingIndexUsedColumns[T](t, keyType, 800, 1000, 13, 0, bpoolSize, index_constants.INDEX_KIND_BTREE, SERIAL_EXEC, 1)
 
-		//InnerTestParallelTxnsQueryingIndexUsedColumns[T](t, keyType, 400, 3000, 13, 0, bpoolSize, index_constants.INDEX_KIND_SKIP_LIST, PARALLEL_EXEC, 20)
+		InnerTestParallelTxnsQueryingIndexUsedColumns[T](t, keyType, 800, 3000, 13, 0, bpoolSize, index_constants.INDEX_KIND_BTREE, PARALLEL_EXEC, 20)
 	case types.Float:
 		InnerTestParallelTxnsQueryingIndexUsedColumns[T](t, keyType, 240, 1000, 13, 0, bpoolSize, index_constants.INDEX_KIND_BTREE, PARALLEL_EXEC, 20)
 	case types.Varchar:
diff --git a/lib/samehada/samehada_util/samehada_util.go b/lib/samehada/samehada_util/samehada_util.go
index 29d746cc..21a05dce 100644
--- a/lib/samehada/samehada_util/samehada_util.go
+++ b/lib/samehada/samehada_util/samehada_util.go
@@ -180,7 +180,7 @@ func GetRandomPrimitiveVal[T int32 | float32 | string](keyType types.TypeID, max
 		// TODO: (SDB) FOR DEBUG: length is fixed
 		//var ret interface{} = *GetRandomStr(50, false)
 		//var ret interface{} = *GetRandomStr(50, true)
-		var ret interface{} = *GetRandomStr(10, true)
+		var ret interface{} = *GetRandomStr(50, true)
 		return ret.(T)
 	default:
 		panic("not supported keyType")