ActiveRecord MySQL bug?

[agbodike]

I'm getting a SQL error in MySQL:

Mysql2::Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'key FROM `flipper_features`' at line 1: SELECT key FROM `flipper_features`

I believe it's due to not putting backticks around key, which is a reserved word in mysql.

The issue does not happen in postgres

We are on an older version of rails (4.0)

Log output:

Started GET "/flipper" for 127.0.0.1 at 2016-05-05 16:46:07 -0700


Started GET "/flipper/features" for 127.0.0.1 at 2016-05-05 16:46:07 -0700
  Flipper::Adapters::ActiveRecord::Feature Load (0.5ms)  SELECT key FROM `flipper_features`
Mysql2::Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'key FROM `flipper_features`' at line 1: SELECT key FROM `flipper_features`

ActiveRecord::StatementInvalid (Mysql2::Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'key FROM `flipper_features`' at line 1: SELECT key FROM `flipper_features`):
  app/middleware/decompress_request.rb:16:in `call'


  Rendered .rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.0.13/lib/action_dispatch/middleware/templates/rescues/_source.erb (0.7ms)
  Rendered .rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.0.13/lib/action_dispatch/middleware/templates/rescues/_trace.erb (2.0ms)
  Rendered .rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.0.13/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb (1.5ms)
  Rendered .rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.0.13/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb within rescues/layout (67.0ms)