Manual:Merging histories

Merging page histories is done using Special:MergeHistory. This lets the user merge revisions of the history of one source page into a newer page. The user can use the radio button column to merge in only the revisions created at and before the specified time. Special:Logs/merge will then present the user with an "Unmerge" button to reverse the merge. This is done by switching the source and destination pages in Special:MergeHistory.

Merging pages works by changing the rev_page field in the revision table. When you merge two pages, the source page must generally be older than the destination page, because Special:MergeHistory will only allow revisions to be prepended to a page's history—mixing histories would not make sense. When merging, the selected revisions from the source page will be set as revisions of the destination page.

Database

logging.log_params holds the page title of the destination page and the timestamp.

Hooks

• Manual:Hooks/ArticleMergeComplete

API

A sample API:Logevents API results:

<item logid="6" ns="0" title="Foo" pageid="2" logpage="2" type="merge" action="merge" user="FooUser" timestamp="2014-09-16T17:43:05Z" comment="">
        <param>Bar</param>
        <param>20140916174244</param>
</item>