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https://issues.apache.org/jira/browse/CASSANDRA-18640?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17747582#comment-17747582
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Ekaterina Dimitrova commented on CASSANDRA-18640:
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Good call as I am about to get back to it pretty soon. CI seems to have
completed well, only failures are the JDK17 runs of the SSLFactoryTest class
which is known issue (CASSANDRA-17992). You will hear from me soon, I promise
> Add vector similarity functions
> -------------------------------
>
> Key: CASSANDRA-18640
> URL: https://issues.apache.org/jira/browse/CASSANDRA-18640
> Project: Cassandra
> Issue Type: New Feature
> Components: CQL/Semantics
> Reporter: Andres de la Peña
> Assignee: Andres de la Peña
> Priority: Normal
> Fix For: 5.x
>
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> Add the CQL vector similarity functions described by
> [CEP-30|https://cwiki.apache.org/confluence/display/CASSANDRA/CEP-30%3A+Approximate+Nearest+Neighbor%28ANN%29+Vector+Search+via+Storage-Attached+Indexes]:
> * similarity_cosine
> * similarity_euclidean
> * similarity_dot_product
> The three functions take two vectors of floats of the same dimensions and
> return a float indicating the similarity score for the vectors.
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