test cleanup

Author: jmhain

tests/sqlparser_common.rs

@@ -8236,14 +8236,25 @@ fn parse_time_functions() {
 
 #[test]
 fn parse_position() {
-    let sql = "SELECT POSITION('@' IN field)";
-    let select = verified_only_select(sql);
     assert_eq!(
-        &Expr::Position {
+        Expr::Position {
             expr: Box::new(Expr::Value(Value::SingleQuotedString("@".to_string()))),
             r#in: Box::new(Expr::Identifier(Ident::new("field"))),
         },
-        expr_from_projection(only(&select.projection))
+        verified_expr("POSITION('@' IN field)"),
+    );
+
+    // some dialects (e.g. snowflake) support position as a function call (i.e. without IN)
+    assert_eq!(
+        call(
+            "position",
+            [
+                Expr::Value(Value::SingleQuotedString("an".to_owned())),
+                Expr::Value(Value::SingleQuotedString("banana".to_owned())),
+                Expr::Value(number("1")),
+            ]
+        ),
+        verified_expr("position('an', 'banana', 1)")
     );
 }