[racket] db library and cursors

Any thoughts on whether the "db" library will support cursors?  Or 
thoughts on handling large query results in the "db" library?

Reason I ask: I'm experimentally reimplementing an older PostgreSQL 
library to use the Racket "db" library.  Some applications using this 
library use cursors for large query results.  In the Racket 5.2.1 source 
code, it looks like even "in-query" sucks all the query result rows into 
a non-lazy list.  I can make a "cursor" object that simply wraps a 
non-lazy list of results, but this could be a problem for large query 
results.

Neil V.