If I were to add columns to, say, cash_hand_player_statistics, and fill those outside PT4, would there be problems expected? I assume restoring a database (and maybe backup?) could be affected (losing the data from my special columns I could live with as I can just re-generate the data)? What about day-to-day operations and maintenance, I suppose you don't work column-by-column, other than updating the cache?
Would it be better to create a new table instead of adding columns to existing tables? Would I be able to query data from the new table to be used in statistics?
I did add some columns in PT3 (to table player), in the late phases I had some problems with creating aliases (but no idea whether it was because of my columns or not), didn't notice other problems.
