A lot of articles online give very simple examples on Blue-Green deployments. However, how would data update be handled?
Say I have a column called
Category with values
(A, B, C, D). In my next release I want to consolidate values
(B, C) -> (E) to handle a new logic. However something goes wrong and I need to rollback in the next release. At this point, the data seems salvageable.
What are ways to properly handle this kind of situations?