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					Originally Posted by  BetterRed
					 
				 
				Glad you got something. I partition by 1st letter, and I don't use ratings at all 
 
It's probably as good as you're going to get.  AFAIK adding custom columns to the Author's table is a pretty big ask - if it were otherwise it would have been done by now.  And if it were to be done, one would probably want to do it for the other entities - Series, Publisher, Tags etc. 
 
BR 
			
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 I know I have wished for this. I have dabbled (ParadoxDOS) with relational datasets. and the individual tables are the more proper place for 1 to 1 relations. 
But I understand that the Magic of custom columns (and incorporating those into the Flatfile view) is sheer genius, allowing the base Calibre code to remain universal.