What is recommended approach when business rules change and now there is an additional event, when old event is now split into 2 events? We need to rebuild read-model, but i don’t want to put any custom logic in event handlers to account for this change. I was thinking that I could back fill ES with this new event, copy old events into new stream and add this additional event. I am finding little documentation or examples on how to do that. I found in one thread that apparently there is “copyTo” function as well, in addition to “emit” and “linkTo”. I need some guidance on how to proceed in this situation.
Any help would be appreciated.