5.0 & pushdown

[Adam D]

mysql> SET GLOBAL engine_condition_pushdown = ON;
Query OK, 0 rows affected (0.00 sec)

mysql> SHOW VARIABLES LIKE '%push%';
+---------------------------+-------+
| Variable_name | Value |
+---------------------------+-------+
| engine_condition_pushdown | OFF |
+---------------------------+-------+
1 row in set (0.00 sec)



Can anyone explain to me how I get this setting going on my cluster?