cursor.execute(
	"SELECT * FROM {jobs} WHERE {jobs}.status = 'open' AND NOT EXISTS ("
		"SELECT job_id FROM {jobmeta} WHERE {jobmeta}.job_id = {jobs}.id AND {jobmeta}.meta_key = 'pj_locked_by' AND {jobmeta}.meta_value IN ("
			"SELECT ID FROM {jobs} WHERE {jobs}.status != 'closed'"
	")) ORDER BY {jobs}.ID ASC LIMIT 1;".format( jobs=config.DB_TABLE_JOBS, jobmeta=config.DB_TABLE_JOBMETA )
);