added check for converter

mlr-org · Jan 31, 2024 · 6310f8a · 6310f8a
1 parent 9d7d7c0
commit 6310f8a
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/R/as_data_backend.R b/R/as_data_backend.R
@@ -67,7 +67,7 @@ as_data_backend.data.frame = function(data, primary_key = NULL, keep_rownames =
   if (is.character(primary_key)) {
     assert_string(primary_key)
     assert_choice(primary_key, colnames(data))
-    assert_integer(data[[primary_key]], any.missing = FALSE, unique = TRUE)
+    assert_integer(data[[primary_key]], any.missing = FALSE, unique = TRUE, lower = 0L)
   } else {
     if (is.null(primary_key)) {
       row_ids = seq_row(data)