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Zero-downtime PostgreSQL migrations

Chris Sinjakli at dotScale 2015

Chris does a post-mortem of a recent outage at GoCardless during a PostgreSQL schema change, and gives practical advice on how to avoid it happening to you.


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Further reading: Blog post from GoCardless, with a few extra tips.

Speaker note: At 2:00 I start my example off wrong. The example only uses a payments table, not a customers one.