sunkai-cai commented on issue #20032:
URL:
https://github.com/apache/shardingsphere/issues/20032#issuecomment-1214397615
# Question
refer to this case #20145 ，Redefine identifier and literals like this：
* Before
```
CREATE DB_DISCOVERY RULE ha_group_0 (RESOURCES(resource0,resource1),
TYPE(NAME=mgr,PROPERTIES(groupName='92504d5b-6dec')),HEARTBEAT(PROPERTIES('keepAliveCron'='0/5
* * * * ?')));
discoveryTypeName
: IDENTIFIER
;
```
* After
```
CREATE DB_DISCOVERY RULE ha_group_0 (RESOURCES(resource0,resource1),
TYPE(NAME="mgr",PROPERTIES(groupName='92504d5b-6dec')),HEARTBEAT(PROPERTIES('keepAliveCron'='0/5
* * * * ?')));
discoveryTypeName
: STRING
;
```
But, if `discoveryTypeName` is `STRING`, then:
* Before
```
DROP DB_DISCOVERY TYPE db_discovery_group_0_mgr;
```
* After
```
DROP DB_DISCOVERY TYPE `db_discovery_group_0_mgr`;
```
So, how can i redefine ？
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