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Posted to issues-all@impala.apache.org by "Abhishek Rawat (Jira)" <ji...@apache.org> on 2025/11/20 15:35:05 UTC

[jira] [Created] (IMPALA-14566) Add support for cosine similarity function

Abhishek Rawat created IMPALA-14566:
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             Summary: Add support for cosine similarity function
                 Key: IMPALA-14566
                 URL: https://issues.apache.org/jira/browse/IMPALA-14566
             Project: IMPALA
          Issue Type: Task
            Reporter: Abhishek Rawat


The cosine similarity function measures the angle between two vectors, regardless of their length (magnitude). The use cases include measuring text similarity and is ideal when the direction (semantic meaning/concept) is more important than the magnitude.

Impala doesn't support a native vector data type yet, so we could possibly use an ARRAY<FLOAT> data type for representing vectors.



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