On Sun, Mar 1, 2020 at 11:29 AM Tom Lane <t...@sss.pgh.pa.us> wrote: > Hm. That would probably be enough to shut up Coverity, but I'm unsure > whether it'd really be an improvement from the legibility and safety > viewpoints.
I noticed that _bt_update_posting() behaves as if the origtuple might not be a posting list tuple at the point that keysize is calculated, despite generally depending on it being a posting list tuple (which it asserts by way of its "_bt_posting_valid(origtuple)" assertion). The final tuple might not be a posting list, but the original one must be (if it isn't, then nbtree VACUUM should be deleting it outright in the traditional way, rather than updating it). I should fix that, either way. > Do you want to try coding it that way and see what it > comes out like? Sure. -- Peter Geoghegan