Too Long; Didn't ReadToday we are happy to present <a href="https://github.com/redbooth/percona_migrator" target="_blank">Percona Migrator</a>, an ActiveRecord <a href="https://hackernoon.com/tagged/adapter" target="_blank">adapter</a> to run online MySQL schema migrations in Rails. Since we implemented it back in December 2014 it has gone through few stages but it has always been an essential par
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