ERROR IN QUERY:
SELECT SQL_CALC_FOUND_ROWS 
                s1.id       AS `id`,
                s1.data_id  AS `data_id`,
                s1.lft     AS `left`,
                s1.rgt    AS `right`,
                s1.level    AS `level`,
                IF(s1.lft = s1.rgt-1, '0', '1') AS `has_children`
            , d.*
                    FROM obj_redactor_tree AS s1
                    LEFT JOIN obj_redactor_tree AS s2 ON ((s1.lft BETWEEN s2.lft AND s2.rgt)) 
LEFT JOIN obj_redactor AS d ON s1.data_id = d.id

                    WHERE s2.lft = 1
                 AND d.`display` = 1
 ORDER BY s1.lft, d.position
Got error 28 from storage engine
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