docs: supplement description of show commands
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@ -30,6 +30,16 @@ SHOW CLUSTER ALIVE;
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查询当前集群的状态是否可用,返回值: 0:不可用 1:完全可用 2:部分可用(集群中部分节点下线,但其它节点仍可以正常使用)
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## SHOW CLUSTER MACHINES
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```sql
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SHOW CLUSTER MACHINES;
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```
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显示集群服务器信息。
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注:企业版独有
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## SHOW CONNECTIONS
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```sql
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@ -99,6 +109,7 @@ SHOW FUNCTIONS;
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```sql
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SHOW LICENCES;
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SHOW GRANTS;
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SHOW GRANTS FULL; // 从 TDengine 3.2.3.0 版本开始支持
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```
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显示企业版许可授权的信息。
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