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fix: add privilege migration note for db dump #4885

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docs: add privilege migration note for db dump
7ttp Feb 22, 2026
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Merge branch 'develop' into docs/fix-privilege-migration-4862
kallebysantos Feb 23, 2026
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9 changes: 9 additions & 0 deletions docs/supabase/db/dump.md
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Expand Up @@ -7,3 +7,12 @@ Requires your local project to be linked to a remote database by running `supaba
Runs `pg_dump` in a container with additional flags to exclude Supabase managed schemas. The ignored schemas include auth, storage, and those created by extensions.

The default dump does not contain any data or custom roles. To dump those contents explicitly, specify either the `--data-only` and `--role-only` flag.

### Note on Privilege Migration

When restoring to a new project, tables inherit ALL privileges from default privileges in the target database. To preserve specific privileges from your dump, revoke defaults before restoring:

```sql
-- Run BEFORE restoring your schema
ALTER DEFAULT PRIVILEGES IN SCHEMA public REVOKE ALL ON TABLES FROM anon, authenticated;
```
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