error:Out of resources when opening file '/tmp/#sql_11e7_81.MYI' (Errcode: 24 - Too many open files)<br>
sql:SELECT blog_article.article_id,
                blog_article.blog_id,
                blog_article.user_id,
                blog_article.title,
                blog_article.body,
                blog_article.comment_type,
                blog_article.ping_default_send,
                blog_article.ping_original_send,
                blog_article.status,
                blog_article.delete_status,
                blog_article.posting_date,
                blog_article.ins_date,
                blog_article.upd_date,
                blog_article.disp_on_product,
                blog_article.twitter_pub,
                concat('	', group_concat(blog_category.category_id separator '	'), '	') category_ids,
                concat('	', group_concat(blog_category.name separator '	'), '	') category_names,
                shop_admin_user.user_name
			FROM
			    blog_article
                LEFT OUTER JOIN
                    blog_article_category
                ON
                    blog_article_category.article_id = blog_article.article_id
                LEFT OUTER JOIN
                    blog_category
                ON
                    blog_category.category_id = blog_article_category.category_id
                LEFT OUTER JOIN
                    shop_admin_user
                ON
                    shop_admin_user.user_id = blog_article.user_id
			WHERE
			    blog_article.delete_status = 0
			    AND blog_article.status = 1
			    AND blog_article.blog_id = '39'
		        AND date_format(blog_article.posting_date,'%Y-%m-%d-%H-%i')  <= '2018-10-19-06-52'
			GROUP BY
                blog_article.blog_id,
                blog_article.user_id,
                blog_article.title,
--                blog_article.body,
                blog_article.comment_type,
                blog_article.ping_default_send,
                blog_article.ping_original_send,
                blog_article.status,
                blog_article.delete_status,
                blog_article.posting_date,
                blog_article.ins_date,
                blog_article.upd_date,
                blog_article.disp_on_product,
                blog_article.twitter_pub,
                shop_admin_user.user_name
		    ORDER BY
		        blog_article.posting_date DESC 
			LIMIT 0, 5 ;<br>