On 04/19/2017 12:13 PM, Henry M wrote:
I was just reading this question on reddit (the text duplicated below). I was wondering if there is an approach for handling array foreign key references. I am interested in the answer since I started using array fields as well. Thank you.
The only thing I can think of is a faux FK, a INSERT/UPDATE trigger that verifies that the ids in the array are in the person table.
----- below is the message from the reddit poster: https://www.reddit.com/r/PostgreSQL/comments/66a74t/question_referential_integrity_between_elements/ First off, thanks for taking the time. I don't see any "weekly help threads" or anything so I hope it's okay I made a post. /The Problem/ I'm extending our CRM database in order to manage the ISO documentation of the company for which I work. We need, as part of ISO, to keep track of project development meetings and attendees. Currently, I have a "meetings" table with an attendee list as an array of integers, each element corresponding to the id field in the "person" table. How do I enforce referential integrity between elements of this array and the id field in "person"? All I could find was a proposed change for 9.2 or 9.3 that got shot down... Please help. I don't want to do a join table.
-- Adrian Klaver adrian.kla...@aklaver.com -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
