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[文档] 树模型 SHOW TIMESERIES 支持按测点名排序(V2.0.11) #1202

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HTHou merged 1 commit into apache:main from leto-bbq:feature/v2.0.11-show-timeseries-sort
Sep 11, 2026
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94 changes: 69 additions & 25 deletions src/UserGuide/Master/Tree/Basic-Concept/Operate-Metadata_apache.md
View file Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -666,21 +666,28 @@ drop timeseries root.ln.wf02.*;

### 3.4 Show Timeseries

* SHOW LATEST? TIMESERIES pathPattern? whereClause? limitClause?
#### 1. Grammar

There are four optional clauses added in SHOW TIMESERIES, return information of time series

Timeseries information includes: timeseries path, alias of measurement, database it belongs to, data type, encoding type, compression type, tags and attributes.
```sql
// ---- Show Timeseries
showTimeseries
: SHOW LATEST? TIMESERIES prefixPath? timeseriesWhereClause? timeConditionClause? orderByTimeseriesClause? rowPaginationClause?
;
// order by timeseries for SHOW TIMESERIES
orderByTimeseriesClause
: ORDER BY TIMESERIES (ASC | DESC)?
;
```

Examples:
The timeseries query results include: timeseries path, database, alias of measurement, data type, encoding, compression, tags and attributes, etc.

* SHOW TIMESERIES
> Note: Since V2.0.11, the query results can be sorted by timeseries name.

presents all timeseries information in JSON form
#### 2. Usage

* SHOW TIMESERIES <`PathPattern`>
* **`SHOW TIMESERIES`**: presents all timeseries information in the system

returns all timeseries information matching the given <`PathPattern`>. SQL statements are as follows:
* **`SHOW TIMESERIES <Path>`**: returns all timeseries information under the given path. The `Path` should be a timeseries path or a path pattern. For example, to view the timeseries under the `root` path and the `root.ln` path respectively, the SQL statements are as follows:

```sql
show timeseries root.**;
Expand Down Expand Up @@ -716,17 +723,13 @@ Total line number = 4
It costs 0.004s
```

* SHOW TIMESERIES LIMIT INT OFFSET INT

returns all the timeseries information start from the offset and limit the number of series returned. For example,
* **`SHOW TIMESERIES LIMIT INT OFFSET INT`**: returns all the timeseries information start from the offset and limit the number of series returned. For example,

```sql
show timeseries root.ln.** limit 10 offset 10
```

* SHOW TIMESERIES WHERE TIMESERIES contains 'containStr'

The query result set is filtered by string fuzzy matching based on the names of the timeseries. For example:
* **`SHOW TIMESERIES WHERE TIMESERIES contains 'containStr'`**: The query result set is filtered by string fuzzy matching based on the names of the timeseries. For example:

```sql
show timeseries root.ln.** where timeseries contains 'wf01.wt'
Expand All @@ -745,9 +748,7 @@ Total line number = 2
It costs 0.016s
```

* SHOW TIMESERIES WHERE DataType=type

The query result set is filtered by data type. For example:
* **`SHOW TIMESERIES WHERE DataType=type`**: The query result set is filtered by data type. For example:

```sql
show timeseries root.ln.** where dataType=FLOAT
Expand All @@ -768,10 +769,7 @@ It costs 0.016s

```

* SHOW TIMESERIES WHERE TAGS(KEY) = VALUE
* SHOW TIMESERIES WHERE TAGS(KEY) CONTAINS VALUE

The query result set is filtered by tags. For example:
* **`SHOW TIMESERIES WHERE TAGS(KEY) = VALUE`** / **`SHOW TIMESERIES WHERE TAGS(KEY) CONTAINS VALUE`**: The query result set is filtered by tags. For example:

```sql
show timeseries root.ln.** where TAGS(unit)='c';
Expand Down Expand Up @@ -800,11 +798,57 @@ It costs 0.004s
```


* SHOW LATEST TIMESERIES
* **`SHOW LATEST TIMESERIES`**: the returned timeseries are sorted in descending order of the last insertion timestamp. Note that when the queried path does not exist, the system will return 0 timeseries.

* **`SHOW INVALID TIMESERIES`**: Since V2.0.8, this SQL statement is supported to show the invalidated timeseries after a full path rename succeeds.

```sql
show invalid timeSeries
```

```
+-----------------------------+-----+--------+--------+--------+-----------+----+----------+--------+------------------+--------+----------------------------------+
| Timeseries|Alias|Database|DataType|Encoding|Compression|Tags|Attributes|Deadband|DeadbandParameters|ViewType| NewPath|
+-----------------------------+-----+--------+--------+--------+-----------+----+----------+--------+------------------+--------+----------------------------------+
|root.ln.wf01.wt01.temperature| null| root.ln| FLOAT| GORILLA| LZ4|null| null| null| null| BASE|root.newln.newwf.newwt.temperature|
+-----------------------------+-----+--------+--------+--------+-----------+----+----------+--------+------------------+--------+----------------------------------+
```

Note: The last column `NewPath` in the result shows the new timeseries corresponding to the invalidated one, which serves scenarios such as view construction and cluster migration (Load + rename).

* **`SHOW TIMESERIES ORDER BY TIMESERIES (ASC | DESC)`**: Since V2.0.11, the query results can be sorted by timeseries name.

```sql
-- Sort by timeseries name in descending order
show timeseries root.ln.** order by timeseries desc
```

```
+-----------------------------+-----+--------+--------+--------+-----------+----+----------+--------+------------------+--------+
| Timeseries|Alias|Database|DataType|Encoding|Compression|Tags|Attributes|Deadband|DeadbandParameters|ViewType|
+-----------------------------+-----+--------+--------+--------+-----------+----+----------+--------+------------------+--------+
| root.ln.wf02.wt02.status| null| root.ln| BOOLEAN| RLE| LZ4|null| null| null| null| BASE|
| root.ln.wf02.wt02.hardware| null| root.ln| TEXT| PLAIN| LZ4|null| null| null| null| BASE|
|root.ln.wf01.wt01.temperature| null| root.ln| FLOAT| GORILLA| LZ4|null| null| null| null| BASE|
| root.ln.wf01.wt01.status| null| root.ln| BOOLEAN| RLE| LZ4|null| null| null| null| BASE|
+-----------------------------+-----+--------+--------+--------+-----------+----+----------+--------+------------------+--------+
```

all the returned timeseries information should be sorted in descending order of the last timestamp of timeseries
```sql
-- Sort by timeseries name in ascending order
show timeseries root.ln.** order by timeseries asc
```

It is worth noting that when the queried path does not exist, the system will return no timeseries.
```
+-----------------------------+-----+--------+--------+--------+-----------+----+----------+--------+------------------+--------+
| Timeseries|Alias|Database|DataType|Encoding|Compression|Tags|Attributes|Deadband|DeadbandParameters|ViewType|
+-----------------------------+-----+--------+--------+--------+-----------+----+----------+--------+------------------+--------+
| root.ln.wf01.wt01.status| null| root.ln| BOOLEAN| RLE| LZ4|null| null| null| null| BASE|
|root.ln.wf01.wt01.temperature| null| root.ln| FLOAT| GORILLA| LZ4|null| null| null| null| BASE|
| root.ln.wf02.wt02.hardware| null| root.ln| TEXT| PLAIN| LZ4|null| null| null| null| BASE|
| root.ln.wf02.wt02.status| null| root.ln| BOOLEAN| RLE| LZ4|null| null| null| null| BASE|
+-----------------------------+-----+--------+--------+--------+-----------+----+----------+--------+------------------+--------+
```


### 3.5 Count Timeseries
Expand Down
94 changes: 69 additions & 25 deletions src/UserGuide/latest/Basic-Concept/Operate-Metadata_apache.md
View file Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -666,21 +666,28 @@ drop timeseries root.ln.wf02.*;

### 3.4 Show Timeseries

* SHOW LATEST? TIMESERIES pathPattern? whereClause? limitClause?
#### 1. Grammar

There are four optional clauses added in SHOW TIMESERIES, return information of time series

Timeseries information includes: timeseries path, alias of measurement, database it belongs to, data type, encoding type, compression type, tags and attributes.
```sql
// ---- Show Timeseries
showTimeseries
: SHOW LATEST? TIMESERIES prefixPath? timeseriesWhereClause? timeConditionClause? orderByTimeseriesClause? rowPaginationClause?
;
// order by timeseries for SHOW TIMESERIES
orderByTimeseriesClause
: ORDER BY TIMESERIES (ASC | DESC)?
;
```

Examples:
The timeseries query results include: timeseries path, database, alias of measurement, data type, encoding, compression, tags and attributes, etc.

* SHOW TIMESERIES
> Note: Since V2.0.11, the query results can be sorted by timeseries name.

presents all timeseries information in JSON form
#### 2. Usage

* SHOW TIMESERIES <`PathPattern`>
* **`SHOW TIMESERIES`**: presents all timeseries information in the system

returns all timeseries information matching the given <`PathPattern`>. SQL statements are as follows:
* **`SHOW TIMESERIES <Path>`**: returns all timeseries information under the given path. The `Path` should be a timeseries path or a path pattern. For example, to view the timeseries under the `root` path and the `root.ln` path respectively, the SQL statements are as follows:

```sql
show timeseries root.**;
Expand Down Expand Up @@ -716,17 +723,13 @@ Total line number = 4
It costs 0.004s
```

* SHOW TIMESERIES LIMIT INT OFFSET INT

returns all the timeseries information start from the offset and limit the number of series returned. For example,
* **`SHOW TIMESERIES LIMIT INT OFFSET INT`**: returns all the timeseries information start from the offset and limit the number of series returned. For example,

```sql
show timeseries root.ln.** limit 10 offset 10
```

* SHOW TIMESERIES WHERE TIMESERIES contains 'containStr'

The query result set is filtered by string fuzzy matching based on the names of the timeseries. For example:
* **`SHOW TIMESERIES WHERE TIMESERIES contains 'containStr'`**: The query result set is filtered by string fuzzy matching based on the names of the timeseries. For example:

```sql
show timeseries root.ln.** where timeseries contains 'wf01.wt'
Expand All @@ -745,9 +748,7 @@ Total line number = 2
It costs 0.016s
```

* SHOW TIMESERIES WHERE DataType=type

The query result set is filtered by data type. For example:
* **`SHOW TIMESERIES WHERE DataType=type`**: The query result set is filtered by data type. For example:

```sql
show timeseries root.ln.** where dataType=FLOAT
Expand All @@ -768,10 +769,7 @@ It costs 0.016s

```

* SHOW TIMESERIES WHERE TAGS(KEY) = VALUE
* SHOW TIMESERIES WHERE TAGS(KEY) CONTAINS VALUE

The query result set is filtered by tags. For example:
* **`SHOW TIMESERIES WHERE TAGS(KEY) = VALUE`** / **`SHOW TIMESERIES WHERE TAGS(KEY) CONTAINS VALUE`**: The query result set is filtered by tags. For example:

```sql
show timeseries root.ln.** where TAGS(unit)='c';
Expand Down Expand Up @@ -800,11 +798,57 @@ It costs 0.004s
```


* SHOW LATEST TIMESERIES
* **`SHOW LATEST TIMESERIES`**: the returned timeseries are sorted in descending order of the last insertion timestamp. Note that when the queried path does not exist, the system will return 0 timeseries.

* **`SHOW INVALID TIMESERIES`**: Since V2.0.8, this SQL statement is supported to show the invalidated timeseries after a full path rename succeeds.

```sql
show invalid timeSeries
```

```
+-----------------------------+-----+--------+--------+--------+-----------+----+----------+--------+------------------+--------+----------------------------------+
| Timeseries|Alias|Database|DataType|Encoding|Compression|Tags|Attributes|Deadband|DeadbandParameters|ViewType| NewPath|
+-----------------------------+-----+--------+--------+--------+-----------+----+----------+--------+------------------+--------+----------------------------------+
|root.ln.wf01.wt01.temperature| null| root.ln| FLOAT| GORILLA| LZ4|null| null| null| null| BASE|root.newln.newwf.newwt.temperature|
+-----------------------------+-----+--------+--------+--------+-----------+----+----------+--------+------------------+--------+----------------------------------+
```

Note: The last column `NewPath` in the result shows the new timeseries corresponding to the invalidated one, which serves scenarios such as view construction and cluster migration (Load + rename).

* **`SHOW TIMESERIES ORDER BY TIMESERIES (ASC | DESC)`**: Since V2.0.11, the query results can be sorted by timeseries name.

```sql
-- Sort by timeseries name in descending order
show timeseries root.ln.** order by timeseries desc
```

```
+-----------------------------+-----+--------+--------+--------+-----------+----+----------+--------+------------------+--------+
| Timeseries|Alias|Database|DataType|Encoding|Compression|Tags|Attributes|Deadband|DeadbandParameters|ViewType|
+-----------------------------+-----+--------+--------+--------+-----------+----+----------+--------+------------------+--------+
| root.ln.wf02.wt02.status| null| root.ln| BOOLEAN| RLE| LZ4|null| null| null| null| BASE|
| root.ln.wf02.wt02.hardware| null| root.ln| TEXT| PLAIN| LZ4|null| null| null| null| BASE|
|root.ln.wf01.wt01.temperature| null| root.ln| FLOAT| GORILLA| LZ4|null| null| null| null| BASE|
| root.ln.wf01.wt01.status| null| root.ln| BOOLEAN| RLE| LZ4|null| null| null| null| BASE|
+-----------------------------+-----+--------+--------+--------+-----------+----+----------+--------+------------------+--------+
```

all the returned timeseries information should be sorted in descending order of the last timestamp of timeseries
```sql
-- Sort by timeseries name in ascending order
show timeseries root.ln.** order by timeseries asc
```

It is worth noting that when the queried path does not exist, the system will return no timeseries.
```
+-----------------------------+-----+--------+--------+--------+-----------+----+----------+--------+------------------+--------+
| Timeseries|Alias|Database|DataType|Encoding|Compression|Tags|Attributes|Deadband|DeadbandParameters|ViewType|
+-----------------------------+-----+--------+--------+--------+-----------+----+----------+--------+------------------+--------+
| root.ln.wf01.wt01.status| null| root.ln| BOOLEAN| RLE| LZ4|null| null| null| null| BASE|
|root.ln.wf01.wt01.temperature| null| root.ln| FLOAT| GORILLA| LZ4|null| null| null| null| BASE|
| root.ln.wf02.wt02.hardware| null| root.ln| TEXT| PLAIN| LZ4|null| null| null| null| BASE|
| root.ln.wf02.wt02.status| null| root.ln| BOOLEAN| RLE| LZ4|null| null| null| null| BASE|
+-----------------------------+-----+--------+--------+--------+-----------+----+----------+--------+------------------+--------+
```


### 3.5 Count Timeseries
Expand Down
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