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Re: Proposed feature: Selective Foreign Keys - Mailing list pgsql-hackers

From Gavin Wahl
Subject Re: Proposed feature: Selective Foreign Keys
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Msg-id CACPudh1HQ8=jQL9wD8O_gFJa3gPcp07-V_Ni44xD_DQ_=FL=mA@mail.gmail.com
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In response to Proposed feature: Selective Foreign Keys  (Tom Dunstan <pgsql@tomd.cc>)
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This a great solution to this problem, one I've found to be very common in web development. The technique will work to add RI to Django's generic foreign keys[1], which are implemented with an id column and a type-flag column.

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