For me, foreign keys for arrays would be incredibly helpful. For simple checkbox-type options, it's _much_ simpler to just put them in an array, and I work with a UI that can handle the arrays well. I do hope this makes it into Postgresql someday! In the meantime, I've mostly sacrificed the referential integrity in favor of the convenience. Just my two cents.
Cheers,
--
Cheers,
Ken
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