https://bugzilla.wikimedia.org/show_bug.cgi?id=49520
Web browser: ---
Bug ID: 49520
Summary: Performance: Update text and ID fields simultaneously
Product: MediaWiki extensions
Version: unspecified
Hardware: All
OS: All
Status: NEW
Severity: enhancement
Priority: Unprioritized
Component: UserMerge
Assignee: [email protected]
Reporter: [email protected]
Classification: Unclassified
Mobile Platform: ---
Right now UserMerge::mergeUser() updates ID fields (e.g., ar_user) and text
fields (e.g., ar_user_text) in separate queries. Considering ar_user and
ar_user_text should be exactly the same for a logged in user, you could cut the
number of DB queries in half by combining them. For large wikis, this may save
a significant amount of time since it doesn't have to scan each table twice.
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