SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 7)
   ExpressionList (children 1)
    Function toStartOfHour (alias h) (children 1)
     ExpressionList (children 1)
      Function toDateTime (children 1)
       ExpressionList (children 1)
        Literal \'2025-01-01 12:00:00\'
   ExpressionList (children 2)
    Identifier h
    Identifier category
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test_limit_by_all
   ExpressionList (children 3)
    OrderByElement (children 1)
     Identifier h
    OrderByElement (children 1)
     Identifier category
    OrderByElement (children 1)
     Identifier value
   Literal UInt64_1
   ExpressionList (children 1)
    Identifier ALL
   Set
