SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 2)
    Function CAST (alias input) (children 1)
     ExpressionList (children 2)
      Literal \'text\'
      Literal \'Nullable(String)\'
    Literal \'aes-256-ofb\' (alias mode)
   ExpressionList (children 2)
    Function toTypeName (children 1)
     ExpressionList (children 1)
      Identifier input
    Function hex (children 1)
     ExpressionList (children 1)
      Function aes_encrypt_mysql (children 1)
       ExpressionList (children 4)
        Identifier mode
        Identifier input
        Identifier key32
        Identifier iv
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier encryption_test
   Literal UInt64_1