SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 5)
   ExpressionList (children 2)
    Function toStartOfHour (alias d) (children 1)
     ExpressionList (children 1)
      Identifier d
    Function count (children 1)
     ExpressionList
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier with_fill_date
   ExpressionList (children 1)
    Identifier d
   ExpressionList (children 1)
    OrderByElement (children 2)
     Identifier d
     Function toIntervalHour (children 1)
      ExpressionList (children 1)
       Literal UInt64_6
   Literal UInt64_5
