DB Errror: pages.title isn't in GROUP BY

[Longjogger]

Hi everybody,

I installed the extension (version 4.2 on TYPO3 8.7.32 with PHP 7.2 and MariaDB 10.1), but if I select the T3extblog backend, there is displayed the following error:

array(4 items)
caller => 'TYPO3\CMS\Core\Database\DatabaseConnection::exec_SELECTquery' (60 chars)
ERROR => ''database.pages.title' isn't in GROUP BY' (43 chars)
lastBuiltQuery => 'SELECT pages.uid, pages.title FROM pages LEFT JOIN tx_t3blog_post ON pages.u id = tx_t3blog_post.pid LEFT JOIN tx_t3blog_com ON pages.uid = tx_t3blog_com .pid WHERE pages.deleted = 0 AND (tx_t3blog_post.deleted = 0 OR tx_t3blog_co m.deleted = 0) GROUP BY pages.uid' (261 chars) debug_backtrace => 'require(o3/sysext/backend/Resources/Private/Php/backend.php),o3/index.php#3 // {closure}#25 // TYPO3\CMS\Backend\Http\Application->run#24 // TYPO3\CMS\C ore\Core\Bootstrap->handleRequest#92 // TYPO3\CMS\Backend\Http\BackendModule RequestHandler->handleRequest#319 // TYPO3\CMS\Backend\Http\BackendModuleReq uestHandler->dispatchModule#89 // TYPO3\CMS\Extbase\Core\Bootstrap->run#182 // TYPO3\CMS\Extbase\Core\Bootstrap->handleRequest#186 // TYPO3\CMS\Extbase\ Mvc\Web\BackendRequestHandler->handleRequest#199 // TYPO3\CMS\Extbase\Mvc\Di spatcher->dispatch#32 // FelixNagel\T3extblog\Controller\BackendBaseControll er->processRequest#85 // TYPO3\CMS\Extbase\Mvc\Controller\ActionController-> processRequest#114 // FelixNagel\T3extblog\Controller\BackendBaseController- >initializeAction#165 // FelixNagel\T3extblog\Controller\BackendBaseControll er->getBlogRelatedPageInfo#150 // FelixNagel\T3extblog\Controller\BackendBas eController->getBlogRelatedPages#170 // FelixNagel\T3extblog\Controller\Back endBaseController->getPagesWithBlogRecords#202 // FelixNagel\T3extblog\Contr oller\BackendBaseController->execBlogPageRelatedQuery#241 // TYPO3\CMS\Core\ Database\DatabaseConnection->exec_SELECTgetRows#223 // TYPO3\CMS\Core\Databa se\DatabaseConnection->exec_SELECTquery#379 // TYPO3\CMS\Core\Database\Datab aseConnection->debug#313' (1316 chars)

So, what's wrong?

Best regards,
Erik

[Felix Nagel]

Sounds like an issue with the SQL mode (which is something that should be fixed / improved in later versions). See here for more info: #196 (comment)

Try running SET GLOBAL sql_mode = '';

Does that help?

[Longjogger]

Yes, that helps! 👍
Thank you!

[Felix Nagel]

Glad I could help!