[racket] db.plt, long query

From: Daniel Bastos (dbastos at toledo.com)
Date: Mon Sep 10 11:52:50 EDT 2012

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?

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