[jira] [Updated] (CALCITE-4896) GROUP BY might get wrong results under certain circumstances in Elasticsearch Adapter

["ZheHu (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CALCITE-4896?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ZheHu updated CALCITE-4896:
---------------------------
    External issue URL:   (was: https://issues.apache.org/jira/browse/CALCITE-2689)

> GROUP BY might get wrong results under certain circumstances in Elasticsearch Adapter
> -------------------------------------------------------------------------------------
>
>                 Key: CALCITE-4896
>                 URL: https://issues.apache.org/jira/browse/CALCITE-4896
>             Project: Calcite
>          Issue Type: Bug
>          Components: elasticsearch-adapter
>    Affects Versions: 1.28.0
>            Reporter: ZheHu
>            Priority: Major
>
> In Elasticsearch Adapter, if one field is grouped by along with missing value, SQL user might get incorrect results. Take the following case as an example:
> {code:java}
> ES mappings: {"int_field1" : integer, "int_field2" : integer}
> doc1 = {"int_field1":1, "int_field2": -2147483648}
> doc1 = {"int_field1":2}
> {code}
> When I try "select count(1) as CNT from view group by int_field2", the result is 2.
> For Integer type, the missing value is replaced by Integer.MIN_VALUE, so doc1 and doc2 will be divided in the same group.
> Any other data types like short、long、float、double, they also have such problem.



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