> Fair point. Attached is v18 of the patch, after pgindent cleanup. Here are some feedbacks to v18 patch.
1) regarding examples in create_statistics manual Here are numbers I got. "with statistics" referrers to the case where multivariate statistics are used. "without statistics" referrers to the case where multivariate statistics are not used. The numbers denote estimated_rows/actual_rows. Thus closer to 1.0 is better. Some numbers are shown as a fraction to avoid 0 division. In my understanding case 1, 3, 4 showed that multivariate statistics superior. with statistics without statistics case1 0.98 0.01 case2 98/0 1/0 case3 1.05 0.01 case4 1/0 103/0 case5 18.50 18.33 case6 111123/0 1111123/0 2) following comments by me are not addressed in the v18 patch. > - There's no docs for pg_mv_statistic (should be added to "49. System > Catalogs") > > - The word "multivariate statistics" or something like that should > appear in the index. > > - There are some explanation how to deal with multivariate statistics > in "14.1 Using Explain" and "14.2 Statistics used by the Planner" > section. Best regards, -- Tatsuo Ishii SRA OSS, Inc. Japan English: http://www.sraoss.co.jp/index_en.php Japanese:http://www.sraoss.co.jp -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers