MySQL AB staff: 1) The recent discussion on the subject "Not using indexes???" brought to light an opportunity for interpreting the documentation in contradictory ways. The page http://www.mysql.com/doc/M/y/MySQL_indexes.html does not mention the IS NOT NULL comparison operator, nor does it mention the inequality (<>) operator.
This allows the reader to believe that since those operators are not mentioned, it goes without saying that they never use an index. It also allows the reader to believe that since each is simply the negation of a comparison whose index use is specifically documented, it goes without saying that they also use an index. Which of these interpretations is the truth that goes without saying, and which is the error that should be obvious even to the uninitiated? Or (removing my tongue gingerly from my cheek), what is going on here? 2) Also, the discussion of ANALYZE TABLE at http://www.mysql.com/doc/A/N/ANALYZE_TABLE.html leaves the user of InnoDB tables in limbo. If this doesn't work on InnoDB tables, what takes its place, or why does its place not need to be taken? Thanks. --Erv Young --------------------------------------------------------------------- Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
