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From "Jiarong Wei (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CALCITE-1424) Invalid column type in DruidConnectionImpl
Date Sun, 09 Oct 2016 11:08:20 GMT
Jiarong Wei created CALCITE-1424:
------------------------------------

             Summary: 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.




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