On 9 November 2018 at 17:05, Ron <ronljohnsonjr@xxxxxxxxx> wrote: > Is this very useful feature on the TODO list, and high enough that it might > get into v12? (Indexes supporting PK and FK constraints just can't be > dropped to use CREATE INDEX CONCURRENT.) There is a patch [1] in the current commitfest which allows indexes to be renamed without taking an access exclusive lock. That's a sort of precursor to allowing REINDEX CONCURRENTLY as, although we can build indexes without blocking, we can't rename them and it's not much good if you do a reindex and the new index appears with some other random name. If that patch gets in with a good amount of time to spare then there's a decent chance we'd see a reindex concurrently command patch appear soon after. [1] https://commitfest.postgresql.org/20/1726/ -- David Rowley http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services
