Tom Lane <t...@sss.pgh.pa.us> wrote: > Josh Berkus <j...@agliodbs.com> writes: >> cost_nestloop and cost_hashjoin are broken for SEMI and ANTI joins > Actually I'm hoping that Kevin Grittner will have something to > report on that one soon So far, I haven't found any performance regressions in the beta2 release compared to the snapshot from March 2nd on our challenging queries. They both perform as well or better than 8.3 for our queries, although there is a slight increase in planning time to get to the better plans. Since there are new plans for most of these, I have had to actually run them to confirm that there is no regression, and that takes some time. I'm still chipping away, but I would say that it looks good to me; unless someone else has a query that's behaving badly, I wouldn't hold it up for this. I'll post right away if a subsequent test shows a problem. -Kevin
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