mingzeh opened a new issue, #4256:
URL: https://github.com/apache/hertzbeat/issues/4256
### Is there an existing issue for this?
- [x] I have searched the existing issues
### Current Behavior
When I export a periodic alert rule, the exported file doesn't contain the
query language (PromQL / SQL) I selected when creating the rule. Here is what I
get:
```json
[{"alertDefine":{"name":"test","type":"periodic_metric","expr":"cpu_usage{instance=\"server1\"}
>
80","period":300,"times":3,"labels":{"severity":"critical"},"template":"test","enable":true}}]
```
If I import this file back, the rule is created but its query language is
empty, even though it is a required field when creating a rule in the UI. The
rule doesn't work afterwards.
<img width="2650" height="1654" alt="Image"
src="https://github.com/user-attachments/assets/53447e68-dc68-4262-9f71-1bbe4fc29b8a";
/>
### Expected Behavior
The exported file should contain the query language, and importing it should
restore the rule exactly as it was.
### Steps To Reproduce
1. Go to Alert -> Threshold, create a new rule with type "Periodic Alert"
and query language "PromQL".
2. Select the rule and export it (JSON / Excel).
3. Open the exported file — the query language is not there.
4. Import the file back and open the imported rule — the query language
field is empty.
### Environment
```markdown
HertzBeat version(s): v1.8.0
```
### Debug logs
_No response_
### Anything else?
Happens with all export formats, not only JSON.
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