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

# Database

> Amplitude local sync: searchable entities, `.search()` filters, and operators.

The Amplitude plugin syncs data locally. Use `corsair.amplitude.db.<entity>.search({ data, limit?, offset? })` with the filters listed per entity.

<Info>
  **New to Corsair?** See [database operations](/concepts/database), [data synchronization](/concepts/integrations), and [multi-tenancy](/concepts/multi-tenancy).
</Info>

## Cohorts

Path: `amplitude.db.cohorts.search`

```ts theme={null}
const rows = await corsair.amplitude.db.cohorts.search({
    data: { /* filters below */ },
    limit: 100,
    offset: 0,
});
```

### Searchable filters

| Field           | Type      | Operators                                  |
| --------------- | --------- | ------------------------------------------ |
| `entity_id`     | `string`  | equals, contains, startsWith, endsWith, in |
| `id`            | `string`  | equals, contains, startsWith, endsWith, in |
| `name`          | `string`  | equals, contains, startsWith, endsWith, in |
| `description`   | `string`  | equals, contains, startsWith, endsWith, in |
| `app_id`        | `number`  | equals, gt, gte, lt, lte, in               |
| `published`     | `boolean` | equals                                     |
| `archived`      | `boolean` | equals                                     |
| `size`          | `number`  | equals, gt, gte, lt, lte, in               |
| `last_computed` | `number`  | equals, gt, gte, lt, lte, in               |
| `last_modified` | `number`  | equals, gt, gte, lt, lte, in               |
| `is_predefined` | `boolean` | equals                                     |
| `type`          | `string`  | equals, contains, startsWith, endsWith, in |
| `createdAt`     | `date`    | equals, before, after, between             |

*Every `.search()` also accepts `limit` and `offset` for pagination. `.list()` is available on the same path without the `.search` suffix in code — see [database operations](/concepts/database).*

***

## Events

Path: `amplitude.db.events.search`

```ts theme={null}
const rows = await corsair.amplitude.db.events.search({
    data: { /* filters below */ },
    limit: 100,
    offset: 0,
});
```

### Searchable filters

| Field                 | Type     | Operators                                  |
| --------------------- | -------- | ------------------------------------------ |
| `entity_id`           | `string` | equals, contains, startsWith, endsWith, in |
| `id`                  | `string` | equals, contains, startsWith, endsWith, in |
| `event_type`          | `string` | equals, contains, startsWith, endsWith, in |
| `user_id`             | `string` | equals, contains, startsWith, endsWith, in |
| `device_id`           | `string` | equals, contains, startsWith, endsWith, in |
| `time`                | `number` | equals, gt, gte, lt, lte, in               |
| `app_version`         | `string` | equals, contains, startsWith, endsWith, in |
| `platform`            | `string` | equals, contains, startsWith, endsWith, in |
| `os_name`             | `string` | equals, contains, startsWith, endsWith, in |
| `os_version`          | `string` | equals, contains, startsWith, endsWith, in |
| `device_brand`        | `string` | equals, contains, startsWith, endsWith, in |
| `device_manufacturer` | `string` | equals, contains, startsWith, endsWith, in |
| `device_model`        | `string` | equals, contains, startsWith, endsWith, in |
| `carrier`             | `string` | equals, contains, startsWith, endsWith, in |
| `country`             | `string` | equals, contains, startsWith, endsWith, in |
| `region`              | `string` | equals, contains, startsWith, endsWith, in |
| `city`                | `string` | equals, contains, startsWith, endsWith, in |
| `dma`                 | `string` | equals, contains, startsWith, endsWith, in |
| `language`            | `string` | equals, contains, startsWith, endsWith, in |
| `ip`                  | `string` | equals, contains, startsWith, endsWith, in |
| `insert_id`           | `string` | equals, contains, startsWith, endsWith, in |
| `session_id`          | `number` | equals, gt, gte, lt, lte, in               |
| `createdAt`           | `date`   | equals, before, after, between             |

*Every `.search()` also accepts `limit` and `offset` for pagination. `.list()` is available on the same path without the `.search` suffix in code — see [database operations](/concepts/database).*

***

## Users

Path: `amplitude.db.users.search`

```ts theme={null}
const rows = await corsair.amplitude.db.users.search({
    data: { /* filters below */ },
    limit: 100,
    offset: 0,
});
```

### Searchable filters

| Field                    | Type      | Operators                                  |
| ------------------------ | --------- | ------------------------------------------ |
| `entity_id`              | `string`  | equals, contains, startsWith, endsWith, in |
| `id`                     | `string`  | equals, contains, startsWith, endsWith, in |
| `user_id`                | `string`  | equals, contains, startsWith, endsWith, in |
| `canonical_amplitude_id` | `number`  | equals, gt, gte, lt, lte, in               |
| `last_seen`              | `number`  | equals, gt, gte, lt, lte, in               |
| `is_identified`          | `boolean` | equals                                     |
| `country`                | `string`  | equals, contains, startsWith, endsWith, in |
| `region`                 | `string`  | equals, contains, startsWith, endsWith, in |
| `city`                   | `string`  | equals, contains, startsWith, endsWith, in |
| `language`               | `string`  | equals, contains, startsWith, endsWith, in |
| `platform`               | `string`  | equals, contains, startsWith, endsWith, in |
| `os`                     | `string`  | equals, contains, startsWith, endsWith, in |
| `device`                 | `string`  | equals, contains, startsWith, endsWith, in |
| `createdAt`              | `date`    | equals, before, after, between             |

*Every `.search()` also accepts `limit` and `offset` for pagination. `.list()` is available on the same path without the `.search` suffix in code — see [database operations](/concepts/database).*

***