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How to change an existing IDL-defined table
Offline computing tutorial Maintained by Wenaus, Fisyak

When you change a table you have to rebuild which contains the dictionary for all tables.

After editing the IDL file as needed, use

cons +pams
from your working directory. After this you should have .share/tables with new/updated tables. Then
cons +St_Tables
and now if you run root4star with bfc.C you should have the new table definitions in ROOT.