I have a CF application that collects data every 5 minutes from a weather
station and many other devices at my home. At about 4pm PST today (2/29), or
midnight GMT on 3/1 , and for all of the 5 minute intervals thereafter, the web
page that displays data for today vs. the same time yesterday stopped working.
The error was:
Query Of Queries runtime error. Comparison exception while executing =.
Query Of Queries runtime error.
Type cast exception: Failed to cast object of type java.lang.String to
java.util.Date.
The specific query is looking for a recorddate (formatted as 'm/d H:m') is:
<cfquery dbtype="query" name="yesterdayData">
SELECT RecordDate,RecordTime,Rain24HR
FROM masterData
WHERE '#yRecordDate#'= recordDate
</cfquery>
If somehow GMT is at play (and I don't understand how or why, because now()
correctly reports local time), then the WHERE clause would have been looking
for a recordDate of '2/29 16:00' when it stopped working.
I've searched all over and found a reference to a CF error.
http://www.flatpackedworld.co.uk/blog/index.cfm/2008/2/28/Coldfusion-possible-Leap-Year-bug
Because the query has worked continuously every 5 minutes for > 3 years, I'm
suspecting that leap year is having a hand in causing this error. Any
suggestions? possible solutions?
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