# SpannerSource

- [JSON representation](https://docs.cloud.google.com/gemini/enterprise/docs/reference/rest/v1/SpannerSource#SCHEMA_REPRESENTATION)

The Spanner source for importing data

| JSON representation |
|---|
| ``` { "projectId": string, "instanceId": string, "databaseId": string, "tableId": string, "enableDataBoost": boolean } ``` |

| Fields ||
|---|---|
| `projectId` | `string` The project ID that contains the Spanner source. Has a length limit of 128 characters. If not specified, inherits the project ID from the parent request. |
| `instanceId` | `string` Required. The instance ID of the source Spanner table. |
| `databaseId` | `string` Required. The database ID of the source Spanner table. |
| `tableId` | `string` Required. The table name of the Spanner database that needs to be imported. |
| `enableDataBoost` | `boolean` Whether to apply data boost on Spanner export. Enabling this option will incur additional cost. More info can be found [here](https://cloud.google.com/spanner/docs/databoost/databoost-overview#billing_and_quotas). |