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The following sequence:
CREATE TABLE t1 (a int) engine=columnstore;
MariaDB [tpch1]> EXPLAIN SELECT a FROM t1 GROUP BY a HAVING 1 != 1 AND a > 1;
ERROR 1815 (HY000): Internal error: Unknown error
MariaDB [tpch1]> EXPLAIN SELECT a FROM t1 GROUP BY a HAVING 1 != 1 AND a > 1;
-----
| id |
select_type |
table |
type |
possible_keys |
key |
key_len |
ref |
rows |
Extra |
-----
| 1 |
PUSHED SELECT |
NULL |
NULL |
NULL |
NULL |
NULL |
NULL |
NULL |
NULL |
-----
1 row in set (0.025 sec)
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