cxhttt233 opened a new issue, #5919:
URL: https://github.com/apache/hop/issues/5919
### Apache Hop version?
2.15.0
### Java version?
17.0.16
### Operating system
Docker
### What happened?
### Description
Hop Web UI becomes unresponsive (grayed out) when entering SQL queries with
WHERE clauses containing functions like `length()` in the Table Input
transform's SQL field. The interface freezes and requires a page refresh to
recover.
### Steps to Reproduce
1. Open Hop Web in browser
2. Create a new pipeline
3. Add a Table Input transform
4. Configure database connection
5. In the SQL field, type: `SELECT * FROM CJ_CJPT_USER.DSM_DFR_SRVRDS WHERE
length(rscd) > 13`
6. The entire interface becomes grayed out and unresponsive
7. Must refresh the browser page to continue working
### Expected Behavior
- SQL validation should happen asynchronously without blocking the UI
- If validation fails, show an error message
- User should be able to continue editing without page refresh
### Actual Behavior
- The entire Hop Web interface becomes unresponsive (grayed out)
- No error message is displayed
- Browser page refresh is required to recover
- All unsaved work may be lost
### Additional Context
- This issue is specific to Hop Web
### Issue Priority
Priority: 2
### Issue Component
Component: Hop Web
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