Happy Wednesday! We're switching sources for our testing data (from a BigQuery db to a RedShift db). My boss really likes seeing the historic status of the metrics and how they progress over the duration of the test. Will that be reset once I switch the data source?

Are you totally disconnecting the BigQuery db? In short, if it's no longer available, once you update, that historic data will no longer be available unless you migrated it to the new db.

The data will be in the new database, but I'm asking about the history of the metrics through the test, what's found when I click "explore time series for this metric"