I am use ROR v= 2.3.4
in my console. i found a strange query SELECT * FROM [Primary Key(id)]
0,
because of i had changed the id[Primary Key] from int to varchar. ruby
on
rails still query the db on int like 0 use int not ‘0’.
such kind query cost too much db resource. and i don’t konw how to
prevent
such query.
please help.