CockroachDB 1.0 is now available! Get more details in this blog post.

How online schema changes are possible in CockroachDB

I periodically need to make changes to tablesā€¦ mostly adding columns. Very simple with the alter table commandā€¦ But my tables have up to 40 million rows now and they are growing fastā€¦ So those alter table commands take several hoursā€¦ Since Iā€™m using amazon RDS [sic], I canā€™t have slave servers to play with and then promote to master. So my question is if thereā€™s a way to do this with minimal downtime?