Export to_datafusion_err from the util crate root

crates/util/src/lib.rs

@@ -32,9 +32,9 @@ use tokio::runtime::Runtime;
 use tokio::task::JoinHandle;
 use tokio::time::sleep;
 
-use crate::errors::{PyDataFusionError, PyDataFusionResult, to_datafusion_err};
-
 pub mod errors;
+pub use crate::errors::to_datafusion_err;
+use crate::errors::{PyDataFusionError, PyDataFusionResult};
 
 /// Utility to get the Tokio Runtime from Python
 #[inline]

crates/util/tests/root_exports.rs

@@ -0,0 +1,23 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+use datafusion_python_util::to_datafusion_err;
+
+#[test]
+fn exports_to_datafusion_err_from_crate_root() {
+    let _ = to_datafusion_err("importable from crate root");
+}