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@ -230,6 +230,16 @@ taos -C
| 缺省值 | 1 | | 缺省值 | 1 |
| 补充说明 | 该参数设置为 1 时，如果查询中含有 GROUP BY，PARTITION BY 以及 INTERVAL 子句且相应的组或窗口内数据为空或者NULL， 对应的组或窗口将不返回查询结果 | | 补充说明 | 该参数设置为 1 时，如果查询中含有 GROUP BY，PARTITION BY 以及 INTERVAL 子句且相应的组或窗口内数据为空或者NULL， 对应的组或窗口将不返回查询结果 |
### multiResultFunctionStarReturnTags
| 属性 | 说明 |
| -------- | ---------------------------------------------------------------------------------------------------------------------------------------------- |
| 适用范围 | 仅客户端适用 |
| 含义 | 查询超级表时，last(\*)/last_row(\*)/first(\*) 是否返回标签列 |
| 取值范围 | 0：不返回标签列，1：返回标签列 |
| 缺省值 | 0 |
| 补充说明 | 该参数设置为 0 时，last(\*)/last_row(\*)/first(\*) 只返回超级表的普通列；为 1 时，返回超级表的普通列和标签列 |
## 区域相关 ## 区域相关
### timezone ### timezone