SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 2)
    Function min (children 1)
     ExpressionList (children 1)
      Identifier x
    Function max (children 1)
     ExpressionList (children 1)
      Identifier x
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 1)
          ExpressionList (children 1)
           Function arrayJoin (alias x) (children 1)
            ExpressionList (children 1)
             Function array (children 1)
              ExpressionList (children 4)
               Function toFloat64 (children 1)
                ExpressionList (children 1)
                 Literal Float64_0
               Literal Float64_nan
               Function toFloat64 (children 1)
                ExpressionList (children 1)
                 Literal Float64_1
               Function toFloat64 (children 1)
                ExpressionList (children 1)
                 Literal Float64_-1