WordPress database error: [Expression #26 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'welcome2_db.wp_post2cat.rel_id' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by]
SELECT DISTINCT * FROM wp_posts LEFT JOIN wp_post2cat ON (wp_posts.ID = wp_post2cat.post_id) LEFT JOIN wp_categories ON (wp_post2cat.category_id = wp_categories.cat_ID) WHERE 1=1 AND (category_id = '17') AND post_date_gmt <= '2018-03-18 15:32:59' AND (post_status = "publish") AND post_status != "attachment" GROUP BY wp_posts.ID ORDER BY post_date DESC LIMIT 0, 50


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