- Montréal 2016
What do you do when your requirements say you need to be able to reproduce the exact same results that a query did sometime in the past? Including to be able to reproduce incorrect statistics on data that has since been corrected? And being able to reproduce exactly which rows were returned by a query in the past? Without large changes to the app?
Well, you do like any time lord would do - break out the TARDIS. Or maybe just use PostgreSQL..
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Magnus Hagander is a member of the PostgreSQL Core Team and a developer and code committer in the PostgreSQL Global Development Group.
He mostly works on different parts of the PostgreSQL backend, recently with a focus on security features such as authentication and encryption, and backup/availability.
To pay the bills, he is an open source software consultant, primarily on PostgreSQL and Varnish at Redpill Linpro in Stockholm, Sweden, where he works with consulting, support and training.