Er is een fout opgetreden in de query:
Query = SELECT *, main.* ,main.id AS main_id
,tv.id AS edit_id
FROM portfolio AS main
LEFT JOIN portfolio AS tv
ON tv.main_id=main.id
AND tv.taalversie='en'
INNER JOIN portfolio_images ON portfolio_images.portfolio_id=main.id
WHERE main.taalversie='nl'
AND main.portfolio='1' GROUP BY main.id ORDER BY main.datum DESC, main.id DESC
Foutmelding = Expression #16 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'skoncreativecom.tv.id' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by