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https://issues.apache.org/jira/browse/CALCITE-1424?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jiarong Wei updated CALCITE-1424:
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Comment: was deleted
(was: The {{doubleSum}} is 64-bit as mentioned in
[Aggregations|http://druid.io/docs/0.9.1.1/querying/aggregations.html] section
of Druid documentation. There're four types of column in Druid, see
[this|https://github.com/druid-io/druid/blob/master/processing/src/main/java/io/druid/segment/column/ValueType.java].
I think {{FLOAT}} corresponds to {{doubleSum}} and {{LONG}} corresponds to
{{longSum}}. It's also proved in my tests.)
> Invalid column type in DruidConnectionImpl
> ------------------------------------------
>
> Key: CALCITE-1424
> URL: https://issues.apache.org/jira/browse/CALCITE-1424
> Project: Calcite
> Issue Type: Bug
> Components: druid
> Reporter: Jiarong Wei
> Assignee: Julian Hyde
>
> Currently the supported column types in Druid adapter are: {{LONG}},
> {{DOUBLE}}, {{STRING}} and {{hyperUnique}}
> There's no clue to show Druid has {{DOUBLE}} as its column type. But instead
> it should be {{FLOAT}} as mentioned in [Druid
> Documentation|http://druid.io/docs/latest/querying/segmentmetadataquery.html]:
> bq. Dimension columns will have type STRING. Metric columns will have type
> FLOAT or LONG or name of the underlying complex type such as hyperUnique in
> case of COMPLEX metric. Timestamp column will have type LONG.
> Fangjin Yang didn't mentioned it in related posts either. See
> [1|https://groups.google.com/forum/#!msg/druid-development/U_24K3FLveM/kE-T1NluqHsJ]
> and
> [2|https://groups.google.com/forum/#!msg/druid-development/cVTJrrxq7kI/MhM3FF3g0x8J]
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