Manual:$wgContentHandlerUseDB/ja

詳細
Set to false to disable use of the database fields introduced by the ContentHandler facility. This way, the ContentHandler facility can be used without any additional information in the database. A page's content model is then derived solely from the page's title. This however means that changing a page's default model (e.g. using ) will break the page and/or make the content inaccessible. This also means that pages can not be moved to a title that would default to a different content model.

Overall, set to, no database updates are needed, but content handling is less robust and less flexible.