SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 3)
          ExpressionList (children 1)
           Literal UInt64_1 (alias x)
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier t_str
          Function lessOrEquals (children 1)
           ExpressionList (children 2)
            Function CAST (children 1)
             ExpressionList (children 2)
              Literal \'1970-01-01\'
              Literal \'date\'
            Function CAST (children 1)
             ExpressionList (children 2)
              Subquery (children 1)
               SelectWithUnionQuery (children 1)
                ExpressionList (children 1)
                 SelectQuery (children 2)
                  ExpressionList (children 1)
                   Function max (children 1)
                    ExpressionList (children 1)
                     Literal \'1970-01-01\'
                  TablesInSelectQuery (children 1)
                   TablesInSelectQueryElement (children 1)
                    TableExpression (children 1)
                     Function numbers (children 1)
                      ExpressionList (children 1)
                       Literal UInt64_1
              Literal \'date\'
