Questions regarding MySQL Indexes for transitions

Hey there,
I’ve a question regarding the FAQ :

It says to implement indexes to the MySQL database, this is fine. But in addition ist says:

They do add a little extra complexity when inserting new logs

Does this only mean that the process of replaying logs takes a bit more time? Or do we have to take care of something when replaying logs? Like using a special option for the logimporter or something.

Does anyone know about this?


Does anyone know about this?