@@ -151,6 +151,9 @@ gmql_materialize <- function(input_data, dir_out, name)

     else

         res_dir_out <- dir_out

+    if(grepl("\\.",name))

+        stop("name dataset cannot contains dot")

+    

     response <- WrappeR$materialize(input_data, res_dir_out)

     error <- strtoi(response[1])

     val <- response[2]