Hi, On 2018-08-22 16:36:00 +0200, Peter Eisentraut wrote: > I'm suspicious that we haven't had much feedback about this. We've > heard of one or two cases where LLVM broke a query outright, and that > was fixed and that was a good result. But we haven't heard anything > about performance regressions. Surely there must be some. There hasn't > been any discussion or further analysis of the default cost settings > either. I feel that we don't have enough information.
Yea. I don't think we'll get really good feedback before production unfortunately :( > I would like, however, that we make a decision one way or the other > before the next beta. I've been handwaving a bit to users not to rely > on the current betas for performance testing because the defaults might > change later. That's bad either way. I don't see particularly much benefit in deciding before beta, personally. What's making you think it'd be important to decide before? Pretty fundamentally, it'll be a setting you don't know is effectively on, for the forseeable future anyway? Greetings, Andres Freund