Query of Queries With Date Strings

Question

Running cold fusion 9
database query, from oracle, includes this in the select clause
, to_Char(DateRequested, 'yyyy-mm-dd') thedate
so it's a string.
Then we have a url variable.  It's called thedate and the value is 2010-06-09.
The objective is to get the record from the oracle query that matches the url variable.
But this code:
<cfquery name="ThisResource" dbtype="query">
select FundingResourceId, status, thedate
from PatientResources
where thedate = <cfqueryparam cfsqltype="cf_sql_char" value="#url.thedate#">
</cfquery>
will not return any rows.  This includes many attempts that included hard coding the value, checking for white space, etc.  Nothing I tried returned the row.  However, when I changed this:
where thedate = <cfqueryparam cfsqltype="cf_sql_char" value="#url.thedate#">
to this
where thedate LIKE <cfqueryparam cfsqltype="cf_sql_char" value="#url.thedate#">
it returned the expected record.  Note that I didn't even need a wildcard.
Anybody have any thoughts on this?

Answer 1

This looks like a bug to me.  I tried your example and got the same results in CF8 and CF9, though it works as expected in Railo...
It seems like it's trying to guess that you really wanted that to be a date.  Change your example from
q = QueryNew("s","varchar");
to
q = QueryNew("s");
And you'll see:
q - query
S
1
{ts '2010-06-10 00:00:00'}
z - query
S
1
{ts '2010-06-10 00:00:00'}