[Catalyst] PostgreSQL quoting issues

[Marius Kjeldahl]

I've got an application where I do the following:

     # Look up last calculated transsum if it exists
     my $rsts = $c->model ('MintAppDB::TransSum')->find ({
                       category => $c->req->param ('category'),
                       sentto => $c->req->param ('sentto'),
                       iso => $c->req->param ('iso')
                     });

sentto contains an url style link, for instance 
"email:marius at kjeldahl.net". Somewhere when generating SQL for this, it 
becomes:

STH: SELECT me.updated, me.category, me.sentto, me.iso, me.amt FROM 
mm_transsum me WHERE ( email:marius at kjeldahl.net = ? AND me.category = ? )

It seems Postgres gets confused with my usage of a variable with colon 
in it, and the default quoting being done on strings somewhere in 
DBD::Pg or DBIx::Class doesn't seem to pursuade Postgres from 
interpreting the string with the colon in as a special "variable" field 
(or whatever, I haven't looked to deep into this functionality of Postgres).

I've tried calling "quote" manually and use:

   sentto => \ $myquotedstring

instead, hoping that manually calling quote from the dbh driver from 
DBD::Pg would take care of it, but no such luck.

The error message being generated by Catalyst/DBIx::Class is:

Cannot mix placeholder styles ":foo" and "?"

Does anybody have an idea how I can pursuade Postgres into accepting 
this as just a simple string and that Postgres shouldn't try to 
interpret anything in it?

Thanks,

Marius K.