On Sat, Jul 25, 2020 at 5:31 PM Peter Geoghegan <p...@bowt.ie> wrote: > I'm glad that this better principled approach is possible. It's hard > to judge how much of a problem this really is, though. We'll need to > think about this aspect some more.
BTW, your HLL patch ameliorates the problem with my extreme "sorted vs random input" test case from this morning [1] (the thing that I just discussed with Tomas). Without the HLL patch the sorted case had 2424 batches. With the HLL patch it has 20. That at least seems like a notable improvement. [1] https://postgr.es/m/CAH2-Wz=ur7MQKpaUZJP=Adtg0TPMx5M_WoNE=ke2vUU=amd...@mail.gmail.com -- Peter Geoghegan