diff --git a/datafusion/optimizer/src/analyzer/type_coercion.rs b/datafusion/optimizer/src/analyzer/type_coercion.rs
index a98678f7c..ed04aa428 100644
--- a/datafusion/optimizer/src/analyzer/type_coercion.rs
+++ b/datafusion/optimizer/src/analyzer/type_coercion.rs
@@ -954,10 +954,6 @@ fn coerce_arguments_for_signature<F: UDFCoercionExt>(
     schema: &DFSchema,
     func: &F,
 ) -> Result<Vec<Expr>> {
-    if expressions.is_empty() {
-        return Ok(expressions);
-    }
-
     let current_fields = expressions
         .iter()
         .map(|e| e.to_field(schema).map(|(_, f)| f))
diff --git a/datafusion/sqllogictest/test_files/type_coercion.slt b/datafusion/sqllogictest/test_files/type_coercion.slt
index 8ab5b63e6..7039e66b3 100644
--- a/datafusion/sqllogictest/test_files/type_coercion.slt
+++ b/datafusion/sqllogictest/test_files/type_coercion.slt
@@ -281,3 +281,24 @@ SELECT true FROM t0 WHERE (REGEXP_MATCH(t0.v1, t0.v1)) NOT ILIKE [];
 
 statement ok
 DROP TABLE t0;
+
+#############################################################
+## Test validation for functions with empty argument lists ##
+#############################################################
+
+# https://github.com/apache/datafusion/issues/20201
+
+query error does not support zero arguments
+SELECT * FROM (SELECT 1) WHERE (STARTS_WITH() IS NULL);
+
+query error does not support zero arguments
+SELECT * FROM (SELECT 1) WHERE (STARTS_WITH() IS NOT NULL);
+
+query error does not support zero arguments
+SELECT * FROM (SELECT 'a') WHERE (STARTS_WITH() SIMILAR TO 'abc%');
+
+query error does not support zero arguments
+SELECT * FROM (SELECT 1) WHERE CAST(STARTS_WITH() AS STRING) = 'x';
+
+query error does not support zero arguments
+SELECT * FROM (SELECT 1) WHERE TRY_CAST(STARTS_WITH() AS INT) = 1;
\ No newline at end of file