ff4fafc4_MySQL_Ruby__Ruby_class
[MySQL type] DATE, DATETIME, TIMESTAMP, TIME [Ruby class] 
Mysql::Time
F i x n u m
F i x n u m o r B i g n u m
F l o a t
S t r i n g
M y s q l : : T i m e
N i l C l a s s
MySQL/Ruby
Ruby class