Fake statistics, and how to get rid of them
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There are two ways to test how your queries behave on huge amounts of data. The simple option is to actually use them on huge amounts of data – but where do you get that if you have no access to the production database, and how do you store it if you happen not to have a multi-terabyte storage array sitting in your basement? So here’s the second best option: you cheat. Luckily, SQL Server has a feature that allows you to do just that. I must warn you that this feature is undocumented and unsupported. You should never under…
