> On Jun 21, 2023, at 7:51 AM, Sean O'Grady <sean@xxxxxxxxxxx> wrote: > > Yes, my question was essentially do I need to separately compress WAL files for storage/archiving even with wal_compression set. So, I think you've answered my question. If WAL files use per-page compression internally, you won't get much benefit from compressing them. If they use lz4 internally, then sure, bzip'ing them will get a little benefit, but nowhere near the normal amount.
