Enable recording of drop columns in refactor log to avoid having to disable blockondataloss

[simonsabin]

If one wants to drop a column you have to disable BlockOnPossibleDataLoss, this is a blanket flag and something folks don't want to leave disabled.

If the dropping of a column was recorded somewhere, then the deployment could ignore the loss of that data as its been explicitly requested to be dropped.

[ErikEJ]

@simonsabin I usually do destructive things like that in a pre pre-deployment script (seperate pipeline stage)

[simonsabin]

Agree, and thats one option, it would be nice to not have to do that.

[ErikEJ]

I never use refactorlog... and prefer being explicit.

[simonsabin]

I don't think many do. because you've got to do things in a particular way to do it