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  1. Solr
  2. SOLR-10436

Add hashRollup Streaming Expression

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    Details

    • Type: New Feature
    • Status: Resolved
    • Priority: Major
    • Resolution: Resolved
    • Affects Version/s: None
    • Fix Version/s: 8.1
    • Component/s: None
    • Labels:
      None

      Description

      The hashRollup Streaming Expression performs group by aggregations by keeping all the groups in an in-memory HashMap. The existing rollup expression requires that the tuples be sorted by the group by fields. The hashRollup will not have the sorting requirement, but it will also not have support for unlimited cardinality, like the rollup expression.

      The hashRollup or rollup can then be chosen based on the requirements of the query.

        Attachments

        1. SOLR-10346.patch
          21 kB
          Joel Bernstein
        2. SOLR-10346.patch
          10 kB
          Joel Bernstein
        3. SOLR-10436.patch
          27 kB
          Joel Bernstein
        4. SOLR-10436.patch
          23 kB
          Joel Bernstein

          Activity

            People

            • Assignee:
              jbernste Joel Bernstein
              Reporter:
              jbernste Joel Bernstein
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              Dates

              • Created:
                Updated:
                Resolved: