> ## Documentation Index
> Fetch the complete documentation index at: https://docs.powersync.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Global Buckets

> Set up global buckets in Sync Rules to sync shared reference data to all connected users without per-user filtering or parameter queries.

Any bucket with no *Parameter Query* in the bucket definition is automatically a *Global Bucket*. These buckets will be synced to all clients/users.

For example, the following Sync Rules sync all `todos` and only unarchived `lists` to all clients/users:

```yaml theme={null}
bucket_definitions:
  global_bucket:
    data:
      # Sync all todos
      - SELECT * FROM todos
      # Sync all lists except archived ones
      - SELECT * FROM lists WHERE archived = false
```

<Note>
  `global_bucket` is *not* a reserved keyword. You can give the bucket any name. If no **Parameter Query** is specified in the bucket definition, the bucket is automatically a global bucket.
</Note>

<Note>
  **Note**: The table/collection names that your Data Queries select from in your Sync Rules must match the table names defined in your [client-side schema](/intro/setup-guide#define-your-client-side-schema).
</Note>

<Note>
  As explained in the [Overview & Key Concepts](/sync/rules/overview#potential-parameter-values-determine-created-buckets), PowerSync uses the possible values for parameters (found in your source database) to generate individual buckets that can be efficiently synced by clients/users depending on the specific parameters that apply to them. By contrast, with a Global Bucket, only a single bucket will be generated on the PowerSync Service that is shared between all your users/clients.
</Note>