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  1. IMPALA
  2. IMPALA-10580

Implement ds_theta_union_f() function.

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    Details

    • Type: New Feature
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: Impala 4.0.0
    • Component/s: Backend, Frontend
    • Labels:
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      Description

      This function receives two strings that are serialized Apache DataSketches Theta sketches. Union two sketches and returns the resulting sketch of union.

      Example:

      select ds_theta_estimate(ds_theta_union_f(sketch1, sketch2))
      from sketch_tbl;
      +-------------------------------------------------------+
      | ds_theta_estimate(ds_theta_union_f(sketch1, sketch2)) |
      +-------------------------------------------------------+
      | 15                                                    |
      +-------------------------------------------------------+

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            • Assignee:
              chufucun Fucun Chu
              Reporter:
              chufucun Fucun Chu
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              Dates

              • Created:
                Updated:
                Resolved: