SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier fill
   ExpressionList (children 2)
    OrderByElement (children 1)
     Identifier date
    OrderByElement (children 3)
     Identifier val
     Literal UInt64_1
     Literal UInt64_6
