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https://issues.apache.org/jira/browse/CALCITE-1279?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julian Hyde resolved CALCITE-1279.
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Resolution: Fixed
Fix Version/s: 1.8.0
Fixed in http://git-wip-us.apache.org/repos/asf/calcite/commit/23c8e458.
> Druid "select" query gives ClassCastException
> ---------------------------------------------
>
> Key: CALCITE-1279
> URL: https://issues.apache.org/jira/browse/CALCITE-1279
> Project: Calcite
> Issue Type: Bug
> Reporter: Julian Hyde
> Assignee: Julian Hyde
> Fix For: 1.8.0
>
>
> In the Druid adapter, a query of "select" query type gives
> {{ClassCastException}}. This does not apply to other query types, such as
> "groupBy", so only SQL queries that have no aggregation (GROUP BY, HAVING)
> are affected.
> The cause is that the {{DRUID_FETCH}} property recently changed from STRING
> to NUMBER but we are still accessing it using {{getString()}}.
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