Whither 1:1? - Mailing list pgsql-general
It’s come to my attention that what seems an obvious and useful database design pattern — 1:1 relations between tables by having a shared primary key — is hardly discussed or used.
It would seem to be a very simple pattern, and useful to avoid storing nulls or for groups of fields that tend to be used together.
Thoughts? Is there some downside I can’t see?
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