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https://issues.apache.org/jira/browse/CALCITE-2206?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julian Hyde resolved CALCITE-2206.
----------------------------------
       Resolution: Fixed
    Fix Version/s: 1.17.0

Fixed in 
[502c1084|http://git-wip-us.apache.org/repos/asf/calcite/commit/502c1084]; 
thanks for the PR, [~Pavel Gubin]!

> JDBC adapter incorrectly pushes windowed aggregates down to HSQLDB
> ------------------------------------------------------------------
>
>                 Key: CALCITE-2206
>                 URL: https://issues.apache.org/jira/browse/CALCITE-2206
>             Project: Calcite
>          Issue Type: Bug
>          Components: jdbc-adapter
>    Affects Versions: 1.15.0
>            Reporter: Pavel Gubin
>            Assignee: Julian Hyde
>            Priority: Major
>             Fix For: 1.17.0
>
>
> JDBC adapter incorrectly pushes windowed aggregates down to HSQLDB. Queries 
> containing window functions fail when using HSQLDB (or any other DB that does 
> not support window functions) because the optimizer converts them to native 
> SQL with window functions which are not supported by HSQLDB. For example:
> {code:sql}
> select "store_id", "product_id", sum("unit_sales") unit_sales, row_number() 
> over (
> partition by "store_id" order by sum("unit_sales") desc
> ) row_num
> from "sales_fact_1998"
> group by "store_id", "product_id"
> {code}



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