# PLUGIN_HOOK_CHANGED_SCHEMA

On SQLite, a plugin's `onUninstall` changed the database schema before its DOWN migrations ran.

## Cause

On SQLite, a plugin's `onUninstall` changed the database schema before its DOWN migrations ran.

On SQLite, a table that was renamed away or replaced cannot be told from the one the DOWN migrations were judged against, so any change to the schema while `onUninstall` runs stops the uninstall before its DOWN migrations.

## Fix

* Undo the schema changes the hook made.
* As the plugin's author, have `onUninstall` change rows only, then run the uninstall again.

## Example

```text
✗ @acme/seo's onUninstall changed the database schema.
  Why:  On SQLite a table it renamed away or replaced cannot be told from the one its DOWN migrations were judged against, so none of them was run, as they could drop a replacement of seo_redirects.
  Next: Undo the schema changes the hook made, and have it change rows only, then run the uninstall again.
  Docs: https://nextlyhq.com/docs/cli/errors/plugin-hook-changed-schema  (PLUGIN_HOOK_CHANGED_SCHEMA)
```