Implement rkv->sqlite migration#3488
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It will be applied at start if (1) no sqlite database is detected, and (2) an Rkv database is detected. Migration works by iterating through all data in the rkv "safe-mode" database and inserting it into the new database. The Rkv database will be kept on disk. This will allow for a rollback if any problems are detected in production and we can implement a recovery step then. migrate rename
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It will be applied at start if
(1) no sqlite database is detected, and
(2) an Rkv database is detected.
Migration works by iterating through all data in the rkv "safe-mode" database and inserting it into the new database. The Rkv database will be kept on disk. This will allow for a rollback if any problems are detected in production and we can implement a recovery step then.
This is straight forward to implement now!
A whole bunch of tests are coming in a bundle later though.