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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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Pavel Gubin updated CALCITE-2206:
---------------------------------
    Summary: Queries with window functions fail when using HSQLDB  (was: Window 
functions pushed to JDBC databases regardless of their support)

> Queries with window functions fail when using 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
>
> Queries containing window functions fail when using HSQLDB (or any other DB 
> that does not support window functions) because optimiser 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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