non-standardized management command is not supported

[actiontech-bot]

Raised by: @zhunina

1. If where condition is with single quote

mysql> show @@datanode where schema='tpcc';
Empty set (0.00 sec)


mysql> show @@datanode where schema=tpcc;
+------+------------------+-------+--------+------+------+---------+------------+----------+---------+---------------+
| NAME | DATHOST          | INDEX | ACTIVE | IDLE | SIZE | EXECUTE | TOTAL_TIME | MAX_TIME | MAX_SQL | RECOVERY_TIME |
+------+------------------+-------+--------+------+------+---------+------------+----------+---------+---------------+
| dn1  | 10.186.21.73/db1 |     0 |      0 |    3 |  400 |   42935 |          0 |        0 |       0 |            -1 |
| dn2  | 10.186.21.75/db1 |     0 |      0 |    0 |  100 |     246 |          0 |        0 |       0 |            -1 |
| dn3  | 10.186.21.73/db2 |     0 |      0 |    1 |  400 |     246 |          0 |        0 |       0 |            -1 |
| dn4  | 10.186.21.75/db2 |     0 |      0 |    3 |  100 |   42822 |          0 |        0 |       0 |            -1 |
+------+------------------+-------+--------+------+------+---------+------------+----------+---------+---------------+
4 rows in set (0.00 sec)

2. If equality should with space wrapped or without
3. If space could be replaced by tab or line separator

[actiontech-bot]

By @zhunina

show @@heartbeat.detail where name=(hostname) return a row with all NULL

[actiontech-bot]

By @zhunina

show @@directmemory = 1; (spaces wrap equality) is unsupported

[zhunina]

done