InsertQuery   (children 2)
 Function file (children 1)
  ExpressionList (children 1)
   Literal \'u8.orc\'
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 1)
    ExpressionList (children 1)
     Function CAST (alias x) (children 1)
      ExpressionList (children 2)
       Function materialize (children 1)
        ExpressionList (children 1)
         Literal UInt64_128
       Literal \'UInt8\'
