diff --git a/rust/cubestore/Cargo.lock b/rust/cubestore/Cargo.lock
index 6bb0ab21a3da3..2bee7bd4b5925 100644
--- a/rust/cubestore/Cargo.lock
+++ b/rust/cubestore/Cargo.lock
@@ -1367,7 +1367,7 @@ checksum = "c2e66c9d817f1720209181c316d28635c050fa304f9c79e47a520882661b7308"
 [[package]]
 name = "datafusion"
 version = "4.0.0-SNAPSHOT"
-source = "git+https://github.com/cube-js/arrow-datafusion?branch=cube#00eb928a70c29ba45525cd5e566fd7e95192928e"
+source = "git+https://github.com/cube-js/arrow-datafusion?branch=cube#735f2cb8051be9f196a3fdb09005c6e939dab1aa"
 dependencies = [
  "ahash",
  "arrow",
diff --git a/rust/cubestore/cubestore/src/sql/mod.rs b/rust/cubestore/cubestore/src/sql/mod.rs
index 80016639cfe5e..7ac801ff8a587 100644
--- a/rust/cubestore/cubestore/src/sql/mod.rs
+++ b/rust/cubestore/cubestore/src/sql/mod.rs
@@ -3922,6 +3922,34 @@ mod tests {
         }).await;
     }
 
+    #[tokio::test]
+    async fn builtin_functions() {
+        Config::run_test("builtin_functions", async move |services| {
+            let service = services.sql_service;
+
+            // ROUND
+            {
+                let result = service
+                    .exec_query("SELECT round(42.4), round(42.4382, 2), round(1234.56, -1)")
+                    .await
+                    .unwrap();
+
+                assert_eq!(result.len(), 1);
+                assert_eq!(result.get_columns().len(), 3);
+
+                assert_eq!(
+                    result.get_rows(),
+                    &vec![Row::new(vec![
+                        TableValue::Float(42.0.into()),
+                        TableValue::Float(42.44.into()),
+                        TableValue::Float(1230.0.into())
+                    ]),]
+                )
+            }
+        })
+        .await;
+    }
+
     #[tokio::test]
     async fn explain_physical_plan() {
         Config::test("explain_analyze_router").update_config(|mut config| {