# VECTOR\_INDEX

This view contains information about the in-memory and on-disk sizes of [vector indexes](https://docs.singlestore.com/cloud/reference/sql-reference/vector-functions/vector-indexing.md).

| Column Name              | Description                                                                                                                                                                                                                                                                           |
| ------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `DATABASE_NAME`          | The name of the database.                                                                                                                                                                                                                                                             |
| `TABLE_NAME`             | The name of the table.                                                                                                                                                                                                                                                                |
| `INDEX_NAME`             | The name of the index.                                                                                                                                                                                                                                                                |
| `INDEX_TYPE`             | The type of the index. Refer to[Vector Indexing](https://docs.singlestore.com/cloud/reference/sql-reference/vector-functions/vector-indexing.md)for index types.                                                                                                                      |
| `NODE_ID`                | The`ID`of the related node.                                                                                                                                                                                                                                                           |
| `MEMORY_SIZE_BYTES`      | The amount of memory in bytes currently consumed by the vector index. This is the number of bytes of the[vector index cache](https://docs.singlestore.com/cloud/reference/sql-reference/vector-functions/vector-indexing/#section-idm234775790645179.md)currently used by this index. |
| `INDEX_CHUNKS_IN_MEMORY` | The number of per-segment indexes of this index currently loaded in the vector index cache.                                                                                                                                                                                           |
| `DISK_SIZE_BYTES`        | The size, in bytes, of the index on disk.                                                                                                                                                                                                                                             |
| `INDEX_CHUNKS_ON_DISK`   | The total number of per-segment indexes in this index.                                                                                                                                                                                                                                |

**Note**: For indexes created in versions prior to 9.0, the fields `INDEX_TYPE` and `DISK_SIZE_BYTES` will display `NULL`. These fields are populated from metadata columns introduced in version 9.0, which are filled during index creation, thus the values for these columns are not known.

***

Modified at: January 26, 2026

Source: [/cloud/reference/information-schema-reference/query-performance-workload-management-and-statistics/vector-index/](https://docs.singlestore.com/cloud/reference/information-schema-reference/query-performance-workload-management-and-statistics/vector-index/)

(An index of the documentation is available at /llms.txt)