Mysql::Error: Specified key was too long; max key length is 767 bytes: CREATE INDEX

Question

I\'m working with rails 2.3.5 application, in witch I have this field

t.string   \"trip_cities\",             :limit => 256

And this ind

Answer 1

how about changing the migration itself:

remove_index "bookings", :name => :trip_cities
add_index "bookings", ["trip_cities"], :name => :trip_cities, :length => { :trip_cities => 255 }