From 421221e2b9db1bcfa4ed4b5aa01bfd48235d32a0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?David=20L=C3=B3pez?= <hola@devel0pez.com>
Date: Wed, 24 Jun 2026 16:20:41 +0200
Subject: [PATCH] fix(spark): return error from ELT coerce_types when fewer
 than 2 args

---
 datafusion/spark/src/function/string/elt.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/datafusion/spark/src/function/string/elt.rs b/datafusion/spark/src/function/string/elt.rs
index c37ecd1d3fc39..e58faf0c40f93 100644
--- a/datafusion/spark/src/function/string/elt.rs
+++ b/datafusion/spark/src/function/string/elt.rs
@@ -69,9 +69,9 @@ impl ScalarUDFImpl for SparkElt {
     fn coerce_types(&self, arg_types: &[DataType]) -> Result<Vec<DataType>> {
         let length = arg_types.len();
         if length < 2 {
-            plan_datafusion_err!(
+            return Err(plan_datafusion_err!(
                 "ELT function expects at least 2 arguments: index, value1"
-            );
+            ));
         }
 
         let idx_dt: &DataType = &arg_types[0];