I see that the REFERENCES constraint is a little more restrictive in
7.1. I need to have a table with a constraint so one of it's columns
must exist in a second table. This is not a key, since there may be N
columns in the second table that match. Any ideas on how I should
create this?
CREATE table foo(
id serial,
permissions int4,
FOREIGN KEY (permissions) REFERENCES bar(permid));
used to work in 7.0 but now it complains with:
psql:ddl.sql:103: ERROR: UNIQUE constraint matching given keys for
referenced table "permissions" not found
-Michael
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