Dba: Enforcing a single "special" foreign row with several regular rows

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Peter Schneider
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Enforcing a single "special" foreign row with several regular rows
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(dba.stackexchange.com/users/59931/thomas-hunter-ii)Thomas Hunter II
(dba.stackexchange.com/users/176905/laurenz-albe)Laurenz Albe
(dba.stackexchange.com/users/59931/thomas-hunter-ii)Thomas Hunter II
A special thanks goes out to the (dba.stackexchange.com/questions/345620/enforcing-a-single-special-foreign-row-with-several-regular-rows)Stackexchange community

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unique-constraint postgresql foreign-key



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