Are date columns stored as String or Integer in a MyISAM table?
I am trying to squeeze more speed from my application and a date column is
used in most of the indexes for my tables. I'm wondering if changing the
Date data type to an Integer is going to speed the queries up. I'm using
Delphi and internally it represents dates as float so using integers will
speed up the Delphi code. But the main slow down I have is with executing
the queries. The dates are used in the indexes, sorting, and in a few
table joins. So is there a speed advantage of switching the dates to
integer?
Don't do it! Save yourself the hassle and let MySQL store
the dates for you in whatever format it likes. You can use
indices to speed up your lookups.
When doing a comparison against a value, MySQL probably
encodes the written value to it's own internal format, so you
lost your "speed" there anyway...
With regards,
Martijn Tonies
Upscene Productions
FREE version of Database Workbench Lite for MySQL!
http://www.upscene.com
Database questions? Check the forum:
http://www.databasedevelopmentforum.com
--
MySQL General Mailing List
For list archives: http://lists.mysql.com/mysql
To unsubscribe: http://lists.mysql.com/mysql?unsub=arch...@jab.org
