Flatten params for Insert exec

exec/exec.go

@@ -288,7 +288,17 @@ func (ins *Insert[T]) execute(conn *simpleorm.DBConnection, tx *sql.Tx) error {
 	}
 	defer stmt.Close()
 
-	rows, err := stmt.Query(params...)
+	// Flattent args to make sure it can be parsed correctly
+	var flatParams []any
+	for _, param := range params {
+		if s, ok := param.([]any); ok {
+			flatParams = append(flatParams, s...)
+		} else {
+			flatParams = append(flatParams, param)
+		}
+	}
+
+	rows, err := stmt.Query(flatParams...)
 
 	if err != nil {
 		return err