Christoph Berg <m...@debian.org> writes: > The question will be coming up eventually, though, and I think the > options on the packaging side are:
> 1) Disable jit completely > 2) Compile --with-llvm, but disable jit in the config by default > 3) Compile --with-llvm, but disable jit for older llvm versions > 4) Enable jit everywhere where llvm >= 3.9 is available > Option 4 is what the Debian packages implement now, but it might make > sense to go to 2 or 3 for PG11 (only). Well, right now JIT is certainly beta-quality code, so you ought to expect bugs. We have an open item at https://wiki.postgresql.org/wiki/PostgreSQL_11_Open_Items to decide whether to ship v11 with JIT enabled by default or not, but I don't expect that decision will be taken until much closer to release. Until then, I think you should be doing (4) so that we can gather data to inform the eventual decision. regards, tom lane
