InsertQuery   (children 2)
 Function file (children 1)
  ExpressionList (children 1)
   Literal \'i8.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 Int64_-128
       Literal \'Int8\'
