"Jerry Champlin" <jchamplin@xxxxxxxxxxxxxxxxxxxxxxxx> writes: > We have synchronous_commit turned off, commit siblings set to 5, > commit_delay set to 50,000. With synchronous_commit off does it make > any sense to be grouping commits? No. In fact commit_delay is a total no-op in that mode. If it were doing anything I think you'd have found that to be a counterproductively large setting ... regards, tom lane