I am using the new Google Spreadsheets that was rolled out a couple of weeks back. I'm using a following query to pull data out of another spreadsheet:
=QUERY(IMPORTRANGE("https://docs.google.com/spreadsheet/ccc?key=blablathisisanexample", "samplesheet!A:D"), "select SUM(Col4) where ( Col1 >= date '2012-1-1' ) ")
The query works perfectly well if I remove the bit 'where ( Col1 >= date '2012-1-1' )'. It will pull data and sum it correctly.
But what's wrong with my where-col1-date filter thingy? It's written the way it was in previous version of Google Spreadsheet, and it gives no error messages. It just returns a header and no result, as if it didn't find a single date. The dates in the data file are in column 1, written in format 4/7/2014, for example. This used to work in the previous version and I'm at a loss now.