# הסרת פלאגין ב-multisite

**URL:** <https://meta.discourse.org/t/uninstalling-a-plugin-on-multisite/223743>\
**Category:** Self-hosting\
**Tags:** multisite\
**Created:** [8 באפריל,‏ 2022,‏ 5:05pm UTC](https://meta.discourse.org/t/uninstalling-a-plugin-on-multisite/223743 "2022-04-08T17:05:09Z")\
**Posts on this page:** 1\
**Showing post:** 1

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**Author:** ![RGJ](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/rgj/32/523185_2.png) [@RGJ](https://meta.discourse.org/u/RGJ)\
**Post date:** [8 באפריל,‏ 2022,‏ 5:05pm UTC](https://meta.discourse.org/t/uninstalling-a-plugin-on-multisite/223743/1 "2022-04-08T17:05:09Z")

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This is quite an edge case, might be a bug, and I am curious if there is a good solution for this.  
@sam I’m tagging you because if anyone should know, I it’s probably you.

Consider a multisite installation.

1. Forum A is added to the multisite
2. A plugin that modifies the database is installed (for instance the chat plugin which adds chat\_enabled to user\_options)
3. Migrations are run and columns are added to some tables on forum A
4. The plugin is removed, columns will remain
5. Forum B is added to the multisite
6. We now have forum A and forum B on a single multisite with different column definitions in `user_options`
7. `multisite:seed_fu` runs into problems (I think because of ActiveRecord model caching?)

```plaintext
#<ActiveRecord::StatementInvalid: PG::UndefinedColumn: ERROR: column user_options.chat_enabled does not exist
LINE 1: ...lendar", "user_options"."oldest_search_log_date", "user_opti...

```

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