SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 2)
    Literal \'aes-128-ecb\' (alias mode)
    Function equals (children 1)
     ExpressionList (children 2)
      Function decrypt (children 1)
       ExpressionList (children 3)
        Identifier mode
        Function encrypt (children 1)
         ExpressionList (children 3)
          Identifier mode
          Identifier input
          Identifier key16
        Identifier key16
      Identifier input
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier encryption_test