The following documentation comment has been logged on the website: Page: https://www.postgresql.org/docs/9.5/static/plpgsql-trigger.html Description:
Before insert on update or insert trigger will fire twice when insert .. on conflict do update does the update part. First with TG_OP='INSERT' and then with TG_OP='UPDATE'. It is not very obvious behaviour, and I think it deserves a notice in documentation. Here is an example: https://gist.github.com/C-Pro/ff0000aaeee469e8f57f232de422bba0 -- Sent via pgsql-docs mailing list (pgsql-docs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-docs
