SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 2)
    Function count (children 1)
     ExpressionList
    Function sum (children 1)
     ExpressionList (children 1)
      Identifier number
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function file (children 1)
       ExpressionList (children 1)
        Literal \'02841.parquet\'
   Function indexHint (children 1)
    ExpressionList (children 1)
     Function less (children 1)
      ExpressionList (children 2)
       Identifier sometimes_null
       Literal UInt64_150
