Hi, Michael! On Sep 14, Michael Widenius wrote: > > Hi! > > I did notice that we haven't cleaned up the usage of the > --old, --new, --safe-mode and --skip-new options in a long time. > > Here is a cleanup of this for MariaDB 5.2 (soon to be made gamma). > After this suggested change, here is how the options would work: > > --new Use new functionality that will exist in next version of > MariaDB. This function exist to make it easier to prepare for an > upgrade. For version 5.1 this functions enables the LIST and RANGE > partitions functions for ndbcluster. > > --old Use compatible behavior with previous main version for some > functionality. For MariaDB 5.1 this means that we are using the old, > MySQL 5.1 compatible, way to calculate checksums for records. If you > are using --old, CHECKSUM TABLE will always do a full table scan. > > --safe_mode > Disable some potential unsafe optimization. For 5.2 these are: > INSERT DELAYED is disabled, myisam_recover_options is set to > DEFAULT (automatically recover crashed MyISAM files). For Aria > table, disable bulk insert optimization to enable one to use > maria_read_log to recover tables even if tables are deleted > (good for testing recovery). > > --skip-new > Skip some new potentially unsafe functions. For 5.2 these are: > INSERT DELAYED is disabled, Query cache size is reset. ... > Any comments ?
Yes. my_getopt supports skip- prefix for all options. Having --skip-new that is different from --skip-new is very confusing. No, "very" is an understatement, Very, VERY, terribly, awfully, deadly confusing. In fact - really! - before I saw this your email, I did not realize there is --skip-new option, and naively thought it's just --skip-new. So, please, please, remove --skip-new option altogether, and let --skip-new to mean what it should (according to the principle of the least surprise) - disabling previously enabled --new. Regards, Sergei P.S. If you cannot see the difference between --skip-new and --skip-new, please replace every second "--skip-new" in this email with --new=0 or --disable-new :) _______________________________________________ Mailing list: https://launchpad.net/~maria-developers Post to : maria-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~maria-developers More help : https://help.launchpad.net/ListHelp
