Mike Mascari <[EMAIL PROTECTED]> writes: >> Are Partial Indices still supported into latest release of PostgreSQL? > I think they have suffered some serious bit-rot over the years > and are no longer functional, although some of the core code > still exists in the backend. Actually, quite a LOT of partial-index support code still exists in the backend. Someone removed support for the "WHERE predicate" clause of CREATE INDEX from the grammar, but I don't know when or why that was done. AFAICT everything is still there to support the feature downstream, and it doesn't look particularly bit-rotted. Someday when we don't have any more-pressing problems, I'd like to try to re-enable that support. At the very least I might learn why it was disabled ;-) (Hey Bruce, do we have a TODO item for "Fix partial indices"?) regards, tom lane