On Thu, Jan 29, 2026 at 1:06 PM Andres Freund <[email protected]> wrote: > Wonder if - independent of this > issue - it could make sense to update the FSM during nbtree WAL recovery...
Maybe that would make sense. But I tend to think that we should have a fully atomic, crash-safe approach to free space management. Particularly in index AMs, where free space can only ever come in BLCKSZ units -- the data structure/concurrency rules can be a lot simpler if it only has to accommodate index AM requirements. Maybe the WAL-logging could be built into existing index AM record types. -- Peter Geoghegan
