• MySQL vs. PostgreSQL, gh-ost perspective

    August 11, 2016

    Last week we released gh-ost, GitHub's online schema migration tool for MySQL. As with other open source releases in the MySQL ecosystem, this release was echoed by several "Why not PostgreSQL?" comments. Having been active in open source since many years now, I'm familiar with these responses, and I find this is a good time […]

  • Introducing gh-ost: triggerless online schema migrations

    August 1, 2016

    I'm thoroughly happy to introduce gh-ost: triggerless, controllable, auditable, testable, trusted online schema change tool released today by GitHub. gh-ost now powers our production schema migrations. We hit some¬†serious limitations using pt-online-schema-change on our large volume, high traffic¬†tables, to the effect of driving our database to a near grinding halt or even to the extent […]

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