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Three-valued / Ternary logic in sugar

Question asked by Günter Swatschina on Sep 19, 2016
Latest reply on Sep 19, 2016 by Günter Swatschina

I want to have a data-type for 3 values:

  • TRUE
  • FALSE
  • UNKNOWN

 

Boolean fields only cover true/false. Is there a way to activate "unknown"? 
Workaround would be a dropdown. 

Thanks for input and ideas!

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