https://bugzilla.wikimedia.org/show_bug.cgi?id=41705
Web browser: ---
Bug #: 41705
Summary: Default implementation of
DatabaseBase::estimateRowCount() works incorrectly for
queries with GROUP BY
Product: MediaWiki
Version: unspecified
Platform: All
OS/Version: All
Status: NEW
Severity: normal
Priority: Unprioritized
Component: Database
AssignedTo: [email protected]
ReportedBy: [email protected]
Classification: Unclassified
Mobile Platform: ---
It simply set array( 'rowcount' => 'COUNT(*)' ) as $var, causing count of the
first group fetched and treated as the count of all grouped rows.
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