Hi Colin,
Thank you for this bug report! I reproduced this behavior and we are going to fix this issue. As a temporary solution you can define same columns with string datatype, and then replace all empty strings with Null, and then change column type to float.
PS:
I posted empty message by mistake.
Best regards,
Mikhail
On Thursday, May 31, 2012 5:47:47 AM UTC-7, Colin wrote: