I think i was wrong ( too early in the morning checking MySQL and replying to PMs at 07:00 lol )
the correct column is
score and it is only a
double
so in our case:
QUOTE(http://stackoverflow.com/questions/6949673/mysql-min-max-for-double-type)
Permissible values are -1.7976931348623157E+308 to -2.2250738585072014E-308, 0, and 2.2250738585072014E-308 to 1.7976931348623157E+308.
"
The closest Double to zero is
2.2250738585072014E-308 positive
-2.2250738585072014E-308 negative"