WordPress database error: [Expression #1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated column 'jdz_blog.wp_posts.post_date' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by]
SELECT max(post_date) 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 = '13') AND post_date_gmt <= '2020-01-21 16:33:59' AND (post_status = "publish") AND post_status != "attachment" GROUP BY year(post_date), month(post_date), dayofmonth(post_date) ORDER BY post_date DESC LIMIT 0,1

WordPress database error: [Expression #1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated column 'jdz_blog.wp_posts.post_date' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by]
SELECT min(post_date) 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 = '13') AND post_date_gmt <= '2020-01-21 16:33:59' AND (post_status = "publish") AND post_status != "attachment" GROUP BY year(post_date), month(post_date), dayofmonth(post_date) ORDER BY post_date DESC LIMIT 6,1

WordPress database error: [Expression #25 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'jdz_blog.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 = '13') AND post_date_gmt <= '2020-01-21 16:33:59' AND (post_status = "publish") AND post_status != "attachment" AND post_date >= '' GROUP BY wp_posts.ID ORDER BY post_date DESC