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  1. Kudu
  2. KUDU-3033

Add min/max values for the non-primary key columns in the metadata of rowsets/datablocks

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    Details

    • Type: New Feature
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: cfile, perf, tablet
    • Labels:
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      Description

      It's possible to add min/max values for the non-primary key columns in the metadata of diskrowset/datablock, and then we can skip decoding/evaluating the unnecessary diskrowset/datablock while scanning. Just like the "compute stats" feature on impala, and the only difference is that kudu supports updates. So, the min/max values should be invalid if the columns that have deltas while scanning.

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            • Assignee:
              Unassigned
              Reporter:
              helifu LiFu He
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              Dates

              • Created:
                Updated: