Interesting Snippets from 2016-08-02

• gh-ost: GitHub’s online schema migration tool for MySQL - GitHub Engineering

  gh-ost has been developed at GitHub in recent months to answer a problem we faced with ongoing, continuous production changes requiring modifications to MySQL tables. gh-ost changes the existing online table migration paradigm by providing a low impact, controllable, auditable, operations friendly solution.

• Why Uber Engineering Switched from Postgres to MySQL - Uber Engineering Blog

  In this article, we’ll explore some of the drawbacks we found with Postgres and explain the decision to build Schemaless and other backend services on top of MySQL.

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