I accidentally forgot to copy pgsql-patches earlier... On Fri, 19 Jan 2007, Tom Lane wrote:
> Gavin Sherry <[EMAIL PROTECTED]> writes: > > Also, some of the equivalence class support code is O(n^2). > > Yeah, at least :-(. But I find it hard to conceive of real-world > queries that would generate more than a few entries per EC; can you? > The old code had similar performance issues, and I don't recall seeing > any complaints that could be traced to that. I can't think of any real world examples... and the fact that the existing code would have similar performance issues and I'm not aware of anyone bringing a problem up, seems like reason enough to not worry. Thanks, Gavin ---------------------------(end of broadcast)--------------------------- TIP 4: Have you searched our list archives? http://archives.postgresql.org