
## Rails v5.0

* Does the schema cache serialize properly since we conform to that now?
* Can we use `OPTIMIZE FOR UNKNOWN`
  - http://sqlblog.com/blogs/aaron_bertrand/archive/2011/09/17/bad-habits-to-kick-using-exec-instead-of-sp-executesql.aspx
  - http://stackoverflow.com/questions/24016199/sql-server-stored-procedure-become-very-slow-raw-sql-query-is-still-very-fast
  - https://blogs.msdn.microsoft.com/sqlprogrammability/2008/11/26/optimize-for-unknown-a-little-known-sql-server-2008-feature/


## Rails v5.1

* BIGINT PK support. https://github.com/rails/rails/pull/26266



## Rails v5.1

* BIGINT PK support. https://github.com/rails/rails/pull/26266


Update TODO for Rails v5
Update TODO for Rails v5 [ci skip]
