Please, God, I hope our customers don't see this. (I'm not upvoting it for that reason.) We support data warehouses and not trying things out in staging is roo

Please, God, I hope our customers don't see this. (I'm not upvoting it for that reason.) We support data warehouses and not trying things out in staging is root cause for many P0 cases. Especially on the weekend because a lot of companies do upgrades Saturday night. I had to deal with this exact scenario last weekend in Istanbul Airport at 9am Sunday morning over a janky LTE connection. It was not a pretty sight. If you are running databases the null hypothesis for any mission critical system is that you must have staging to test upgrade as well as out-of-band activities like restoring from backup. Edit: And to test performance too. Use real data.