Dave Bailey wrote:
> If you view the raw file and look for the definition of
> Item_func_ieee754_to_string::val_str(String *str)
> the comment specifies that 17 digits of precision are needed for double.
> It is also true that 9 digits are needed for single precision. I didn't
> it, but I tested it once with every possible value of a single precision
> and found that there were cases where 8 digits was not enough to support
> a lossless conversion from float to string and back.
Well, OK... :) The patch is in svn now.