We are running MySQL 5.0.77, and using INNODB in production for the first time. The production database has a lot of inserts and deletes, and the shared "ibdata1" file is continually growing. I understand that to return the unused space to the operating system, we must delete and recreate "ibdata1" and its associated ".frm" files. I am wondering if we could do the following instead:
1) Let "ibdata1" grow for a while. 2) Rebuild the tables periodically using this syntax: ALTER TABLE t1 ENGINE = InnoDB; I realize that this would not return the unused space to the operating system. But would it return it to MySQL so that it could be re-used for subsequent inserts, instead of extending "ibdata1" further? Kay Rozeboom Information Technology Enterprise Iowa Department of Administrative Services Telephone: 515.281.6139 Fax: 515.281.6137 Email: kay.rozeb...@iowa.gov
