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Applies to: 
SQL Server 2025 (17.x) Preview
Contains a row per vector index.
| Column name | Data type | Description |
|---|---|---|
| <inherited columns> | Inherits columns from sys.indexes. | |
| vector_index_type | varchar(20) | Type of vector index (DiskANN only for now) |
| distance_metric | varchar(20) | Metric used to create the vector index |
| build_parameters | nvarchar(max) | Internal usage only |
Permissions
The visibility of the metadata in catalog views is limited to securables that a user either owns, or on which the user was granted some permission. For more information, see Metadata Visibility Configuration.
Examples
The following example returns all indexes for the table [dbo].[wikipedia_articles_embeddings] used in the DiskANN sample available in the https://github.com/Azure-Samples/azure-sql-db-vector-search GitHub sample repo.
SELECT
object_id,
index_id,
vector_index_type,
distance_metric,
build_parameters
FROM
sys.vector_indexes AS vi
WHERE
object_id = OBJECT_ID('[dbo].[wikipedia_articles_embeddings]')