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  1. Calcite
  2. CALCITE-499

Estimate number of rows in ReflectiveSchema

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    Details

    • Type: Bug
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: 1.0.0-incubating
    • Fix Version/s: None
    • Component/s: None
    • Labels:

      Description

      It would be nice if ReflectiveSchema could provide row estimates.
      For arrays it is zero cost (Array.getLength(...).
      For collections the invocation of .size() might be slow, however I am fine with both ways: return unknown or execute .size().

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            • Assignee:
              Unassigned
              Reporter:
              vladimirsitnikov Vladimir Sitnikov
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              Dates

              • Created:
                Updated: