A database query error has occurred. This may indicate a bug in the software.
DifferenceEngine::loadRevisionData
Backtrace:
#0 /x1/mediawiki-1.23.13/includes/db/Database.php(1123): DatabaseBase->reportQueryError() #1 /x1/mediawiki-1.23.13/includes/db/Database.php(1590): DatabaseBase->query() #2 /x1/mediawiki-1.23.13/includes/db/Database.php(1301): DatabaseBase->select() #3 /x1/mediawiki-1.23.13/includes/diff/DifferenceEngine.php(1298): DatabaseBase->selectField() #4 /x1/mediawiki-1.23.13/includes/diff/DifferenceEngine.php(239): DifferenceEngine->loadRevisionData() #5 /x1/mediawiki-1.23.13/includes/Article.php(826): DifferenceEngine->showDiffPage() #6 /x1/mediawiki-1.23.13/includes/Article.php(549): Article->showDiffPage() #7 /x1/mediawiki-1.23.13/includes/actions/ViewAction.php(44): Article->view() #8 /x1/mediawiki-1.23.13/includes/Wiki.php(487): ViewAction->show() #9 /x1/mediawiki-1.23.13/includes/Wiki.php(285): MediaWiki->performAction() #10 /x1/mediawiki-1.23.13/includes/Wiki.php(647): MediaWiki->performRequest() #11 /x1/mediawiki-1.23.13/includes/Wiki.php(506): MediaWiki->main() #12 /x1/mediawiki-1.23.13/index.php(46): MediaWiki->run() #13 {main}