SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 2)
    Literal \'aes-128-cbc\' (alias mode)
    Function hex (children 1)
     ExpressionList (children 1)
      Function encrypt (children 1)
       ExpressionList (children 4)
        Identifier mode
        Identifier input
        Identifier key16
        Identifier iv
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier encryption_test