Vladimir Sitnikov created CALCITE-4215:
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Summary: Ensure org.apache.calcite.schema.Statistic uses null vs
emptyList appropriately
Key: CALCITE-4215
URL: https://issues.apache.org/jira/browse/CALCITE-4215
Project: Calcite
Issue Type: Sub-task
Components: core
Affects Versions: 1.25.0
Reporter: Vladimir Sitnikov
null: statistic is *not* *known*
emptyList: statistic is *known*, and the value is *empty* (e.g. no unique keys
in the table)
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