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Old 05-24-2018, 07:22 PM   #49
BetterRed
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Posts: 20,575
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Join Date: Mar 2012
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Quote:
Originally Posted by DrChiper View Post
Just curious: There used to be some performance penalty on using lots of user defined columns. Does this still apply?
I don't think its as bad as it once was. Kovid and chaley did some re-engineering of the in-memory database a while back. I know it was after they implemented Virtual Libraries. Several users wanted a composite column that contained a list of the VLs that applied to each book; after the change their start up times went from tens of minutes to tens of seconds or better.

BR
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