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https://issues.apache.org/jira/browse/CALCITE-1347?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jesus Camacho Rodriguez updated CALCITE-1347:
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Fix Version/s: 1.9.0
> Druid adapter column detection misses strings
> ---------------------------------------------
>
> Key: CALCITE-1347
> URL: https://issues.apache.org/jira/browse/CALCITE-1347
> Project: Calcite
> Issue Type: Bug
> Components: druid
> Reporter: Gian Merlino
> Assignee: Julian Hyde
> Fix For: 1.9.0
>
>
> Currently string columns aren't detected because "isSupportedType" doesn't
> include them.
> Also, I think there isn't any need to add to fieldBuilder while scanning the
> "aggregators" - that map contains the aggregate functions used to create the
> metric columns, but the metric columns are still in "columns" anyway.
> Patch: https://github.com/apache/calcite/pull/268
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