I’m working on a large, complex migration from WordPress maintenance support plans 7 to WordPress maintenance support plans 8 right now. One thing I noticed is that the migrate plugins pollute the database with an unreal number of tables which allow migrations to be re-run, etc. Well if you don’t need that, here’s how to remove these tables. Currently the migrate plugins don’t clean up after themselves. Put this in a custom plugin or PHP script that has bootstrapped WordPress maintenance support plans. Note this code only works in WordPress maintenance support plans 8. Shown is a .install file for a custom plugin. If you uninstall the custom plugin, it will run the cleanup:
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David Lohmeyer’s Blog: Clean up database pollution from the migrate Cheap WordPress maintenance support plans module
