or download this
SELECT stat_day, obs_day, stat_week, obs_week, NULL AS stat_cputotal,
+stat_memfree, stat_md5, stat_month, obs_month, stat_type, stat_memuse
+d, stat_10min, obs_10min, NULL AS stat_cpusystem, stat_epoch, obs_epo
+ch, stat_30day, obs_30day, stat_idx, obs_idx, NULL AS stat_cpuidle, s
+tat_memtotal, stat_qtr, obs_qtr, NULL AS stat_cpuuser, stat_hour, obs
+_hour, obs_10min, stat_10min, obs_30day, stat_30day, obs_day, stat_da
+y, obs_epoch, stat_epoch, obs_hour, stat_hour, obs_idx, stat_idx, obs
+_month, stat_month, obs_qtr, stat_qtr, obs_week, stat_week, serial_nu
+m, NULL AS dputil_cpuid, NULL AS wms_pk FROM ((SELECT stat_qtr, obs_q
+tr, stat_qtr AS cus_qtr, stat_qtr AS crash_qtr, stat_qtr AS evt_qtr,
+stat_30day, obs_30day, stat_30day AS cus_30day, stat_30day AS crash_3
+0day, stat_30day AS evt_30day, stat_month, obs_month, stat_month AS c
+us_month, stat_month AS crash_month, stat_month AS evt_month, stat_we
+ek, obs_week, stat_week AS cus_week, stat_week AS crash_week, stat_we
+ek AS evt_week, stat_day, obs_day, stat_day AS cus_day, stat_day AS c
+rash_day, stat_day AS evt_day, stat_hour, obs_hour, stat_hour AS cus_
+hour, stat_hour AS crash_hour, stat_hour AS evt_hour, stat_10min, obs
+_10min, stat_10min AS cus_10min, stat_10min AS crash_10min, stat_10mi
+n AS evt_10min, stat_epoch, obs_epoch, stat_epoch AS cus_epoch, stat_
+epoch AS crash_epoch, stat_epoch AS evt_epoch, stat_idx, obs_idx, sta
+t_idx AS cus_idx, stat_idx AS crash_idx, stat_idx AS evt_idx, obs_10m
+in, obs_30day, obs_day, obs_epoch, obs_hour, obs_idx, obs_month, obs_
+qtr, obs_week, serial_num, stat_md5, MIN(stat_memfree) AS stat_memfre
+e, MIN(stat_md5) AS stat_md5, MIN(stat_type) AS stat_type, MIN(stat_m
+emused) AS stat_memused, MIN(stat_memtotal) AS stat_memtotal FROM (se
+lect * from ( mem_stat NATURAL LEFT OUTER JOIN host )) GROUP BY stat_
+qtr, stat_30day, stat_month, stat_week, stat_day, stat_hour, stat_10m
+in, stat_epoch, stat_idx, obs_10min, obs_30day, obs_day, obs_epoch, o
+bs_hour, obs_idx, obs_month, obs_qtr, obs_week, serial_num, stat_md5)
+)