> ## Documentation Index
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> Use this file to discover all available pages before exploring further.

> timeSeriesTags 表函数返回表 `db_name.time_series_table` 所使用的标签表，该表的表引擎为 TimeSeries 引擎。

# timeSeriesTags

`timeSeriesTags(db_name.time_series_table)` - 返回表引擎为 [TimeSeries](/zh/reference/engines/table-engines/integrations/time-series) 的表 `db_name.time_series_table` 所使用的[标签](/zh/reference/engines/table-engines/integrations/time-series#tags-table)表：

```sql theme={null}
CREATE TABLE db_name.time_series_table ENGINE=TimeSeries TAGS tags_table
```

如果 *tags* 表位于内层，该函数同样适用：

```sql theme={null}
CREATE TABLE db_name.time_series_table ENGINE=TimeSeries TAGS INNER UUID '01234567-89ab-cdef-0123-456789abcdef'
```

以下查询是等价的：

```sql theme={null}
SELECT * FROM timeSeriesTags(db_name.time_series_table);
SELECT * FROM timeSeriesTags('db_name.time_series_table');
SELECT * FROM timeSeriesTags('db_name', 'time_series_table');
```