On Fri, Oct 19, 2012 at 5:48 PM, Tom Lane <t...@sss.pgh.pa.us> wrote: > It looks like we could support > > CREATE TABLE t1 (c int[] REFERENCES BY ELEMENT t2); > > but (1) this doesn't seem terribly intelligible to me, and > (2) I don't see how we modify that if we want to provide > at-least-one-match semantics later.
What about something more generic? CREATE TABLE <tname> ( <cname> <type> [(<expr>)] REFERENCES <t2name> [(<t2expr>)] ) Meaning, if <expr> is missing, it's taken <expr> = <cname>, if not, it's the result of that expression the one that references the target table. Sounds crazy, but with ALL() and ANY() it ought to support lots of subcases. -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
