Yes, that's another good example of 11.3 where you caneither use a pg partial index, or a pg/mysql unique nullable column with active=true or null.
Thanks, James Briggs.
--
Cassandra/MySQL DBA. Available in San Jose area or remote.
cass_top: https://github.com/jamesbriggs/cassandra-top
From: Jared Beck
Any plans to implement partial indexes? (https://www.postgresql.org/docs/10/static/indexes-partial.html)
No such plans at the moment. What do you you need them for?
I have used unique partial indexes to enforce business rules like "Active users must have a unique phone number, but there may be any number of inactive users with the same phone number" ``` create unique index ix_active_phones on users (phone) where active = true ; ``` -- Jared Beck • (607) 216-5373 • jared@jaredbeck.com _______________________________________________ Mailing list: https://launchpad.net/~maria-developers Post to : maria-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~maria-developers More help : https://help.launchpad.net/ListHelp