Using Vector Functions

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SingleStore provides a native vector data type and supports similarity searches over vector data using k-nearest neighbor search (kNN) and indexed Approximate Nearest Neighbor (ANN) search. Indexed ANN search can greatly improve the performance of queries over large vector data sets.

Resources

The following resources provide information about SingleStore's vector processing:

Vector Type: The native vector data type.
Working with Vector Data: Vector similarity search.
How to Bulk Load Vectors: Load larger vector data sets using a binary format.
Vector Indexing: Indexed Approximate Nearest Neighbor (ANN) vector similarity search.
Hybrid Search - Re-ranking and Blending Searches: Combine indexed (ANN) vector similarity search and full-text search.
Tuning Vector Indexes and Queries: Adjust the index building and searching parameters to meet your application's needs for query accuracy and performance.

The following functions are available for the vector type:

DOT_PRODUCT: Calculate the dot product of two vectors.
EUCLIDEAN_DISTANCE: Calculate the Euclidean distance between two vectors.
Cosine Similarity and Cosine Distance: Calculate the cosine similarity and distance metrics.
SCALAR_VECTOR_MUL: Multiply a vector by a scalar value.
VECTOR_ADD: Add two vectors.
VECTOR_ELEMENTS_SUM: Sum all the elements in a vector.
VECTOR_KTH_ELEMENT: Find the kth element of a vector.
VECTOR_MUL: Multiply two vectors element-wise.
VECTOR_NUM_ELEMENTS: Count the number of elements in a vector.
VECTOR_SORT: Sort a vector.
VECTOR_SUB: Subtract one vector from a second vector.

Last modified: April 30, 2024

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Verification instructions

Note: You must install cosign to verify the authenticity of the SingleStore file.

Use the following steps to verify the authenticity of singlestoredb-server, singlestoredb-toolbox, singlestoredb-studio, and singlestore-client SingleStore files that have been downloaded.

You may perform the following steps on any computer that can run cosign, such as the main deployment host of the cluster.

(Optional) Run the following command to view the associated signature files.
Shell
```
curl undefined
```
Download the signature file from the SingleStore release server.
- Option 1: Click the Download Signature button next to the SingleStore file.
- Option 2: Copy and paste the following URL into the address bar of your browser and save the signature file.
- Option 3: Run the following command to download the signature file.
  Shell
```
curl -O undefined
```

After the signature file has been downloaded, run the following command to verify the authenticity of the SingleStore file.

Shell

echo -n undefined |
    cosign verify-blob --certificate-oidc-issuer https://oidc.eks.us-east-1.amazonaws.com/id/CCDCDBA1379A5596AB5B2E46DCA385BC \
      --certificate-identity https://kubernetes.io/namespaces/freya-production/serviceaccounts/job-worker \
      --bundle undefined \
      --new-bundle-format -

Verified OK