[jira] [Commented] (CALCITE-2206) Queries with window functions fail when using HSQLDB

["Julian Hyde (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CALCITE-2206?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16433281#comment-16433281 ] 

Julian Hyde commented on CALCITE-2206:
--------------------------------------

Reviewing and testing now. Will commit when tests pass.

> 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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