On Tue, 2021-07-20 at 20:27 -0400, Alvaro Herrera wrote: > I have to wonder if there really *is* a use case for CLUSTER in the > first place on regular tables, let alone on partitioned tables, which > are likely to be large and thus take a lot of time. What justifies > spending so much time on this implementation? My impression is that > CLUSTER is pretty much a fringe command nowadays, because of the access > exclusive lock required. > > Does anybody actually use it?
I see is used in the field occasionally, as it can really drastically improve performance. But I admit is is not frequently used. In a data warehouse, which is updated only occasionally, running CLUSTER after an update can make a lot of sense. I personally think that it is enough to be able to cluster the table partiton by partition. Yours, Laurenz Albe
