This is causing the query to fail and error stating it should be in GROUP BY clause. This is only occurs for Columnstore table, while MyISAM table has no issue.

MariaDB [com_db]> SELECT hour_ct,
> ADDDATE( DATE_FORMAT( hour_ct, '%Y%m-%d 00:00:00' ), INTERVAL 0 SECOND ) AS temp0,
-> count(hour_ct) over(partition by left(hour_ct,10))
-> FROM com_db.DC_MNI_mvcore_video_hourly
-> WHERE ((hour_ct >= TIMESTAMP('2022-08-07 00:00:00')) AND (hour_ct < TIMESTAMP('2022-08-08 00:00:00')))
-> GROUP BY hour_ct,temp0;
ERROR 1815 (HY000): Internal error: MCS-2021: 'Expression/Function' is not in GROUP BY clause. All non-aggregate columns in the SELECT and ORDER BY clause must be included in the GROUP BY clause.
MariaDB [com_db]>

[root@f68eac01f002 columnstore]# pwd
/usr/share/columnstore
[root@f68eac01f002 columnstore]# cat releasenum
version=6.4.3
release=1