[racket] db.plt, long query

2012/9/10 Daniel Bastos <dbastos at toledo.com>:
> It seems that if I give a very long string to query-rows, I get the
> following message.
>
>  query-rows: unsupported type: (typeid string)
>
> Short queries are no problem. How do you guys do this properly?

The problem is not the length of the query, but a query which grabs a
column whose datatype the library does not support. The documentation
suggests casting the datatype to a supported type.