- Task
- Version · 5.1.1
- User guide
ChangeDropColumnWarn
Last updated: July 13, 2026
ChangeDropColumnWarn is a policy check that warns a user when a column is being dropped so that they can ensure that such a schema change won't lead to unintentional loss of data and unrecoverable data loss.
Uses
Liquibase version required | 4.5.0+ |
Scope (--checks-scope) | changelog |
Default status | enabled |
Default severity (exit code) | 0 ("INFO") |
Customizable settings | No (static) |
Use the check to warn when a column is being dropped. A column drop can lead to a significant schema change which can destroy your organization’s most essential resource: critical data. Such an unintended change can result in permanent data loss, production level service outages, and more. This policy check, like other checks, can be configured with a “severity” level which returns an exit code designed to stop automated jobs, giving your team time to inspect these significant changes.
Before you begin
Ensure that the
--checks-scopeparameter includes the scope of this check.
Changelog checks prerequisites
Procedure
Enable
This check is enabled by default. To verify that it is currently enabled, run the checks show command:
liquibase checks show --check-name=<string>
To run the check, use the checks run command.
Note: For flow files you'll need to run liquibase flow to apply your changes.
Example output
Check 'ChangeDropColumnWarn' has been enabled.
Short Name | Scope | Status | Severity | Customization | Description |
|---|---|---|---|---|---|
ChangeDropColumnWarn | changelog | enabled | 0 | None | This check warns a user when a column is being dropped so that they can ensure that dropping the column won't lead to unintentional loss of data. |
Liquibase command 'checks enable' was executed successfully.