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Hello 2008/6/10 <A.Anibayev@astel.kz>: > > Dear administrator, > > I would like to know whether PostgreSQL has some help tips (hints) for query > optimizer that can help to use it more efficiently (for instance, as Oracle > has such tips for optimizer as "hint")? If it has, so, please, inform me a > version (I know, that 8.3 version has not such features). If it has not, so > will be there such hints in the future version? > PostgreSQL doesn't use hints - and there are not plan to change it Features We Do Not Want: from ToDo: Optimizer hints (not wanted) Optimizer hints are used to work around problems in the optimizer. We would rather have the problems reported and fixed. http://archives.postgresql.org/pgsql-hackers/2006-08/msg00506.php http://archives.postgresql.org/pgsql-hackers/2006-10/msg00517.php http://archives.postgresql.org/pgsql-hackers/2006-10/msg00663.php Regards Pavel Stehule > Sincerely yours > Anuar