Mirgation is not completing. Mysql2::Error: BLOB/TEXT column 'identity' used in key specification without a key length: CREATE INDEX `index_login_activities_on_identity` ON `login_activities` (`identity`)

[Igor Grebennikov]

Hello. So I have Mysql on board and I am using mysql2 gem,

ruby "2.3.4"
gem 'rails', '~> 5.1.5'
gem 'mysql2'
gem 'devise'
gem 'omniauth'
gem 'omniauth-twitter'
gem 'omniauth-facebook'
gem 'omniauth-vkontakte'
gem 'omniauth-google-oauth2'
gem 'omniauth-odnoklassniki'
gem "omniauth-yandex"
gem 'authtrail'

When trying to install this gem automatic migration is created and it throws

StandardError: An error has occurred, all later migrations canceled:
Mysql2::Error: BLOB/TEXT column 'identity' used in key specification without a key length: CREATE  INDEX `index_login_activities_on_identity`  ON `login_activities` (`identity`) 

and thus I am left with a pending migration.

[Andrew Kane]

Hey @liligga, thanks for reporting 👍 This is fixed on master.