[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-5715) Using row_number with the SQLServerDialect makes select distinct useless

[Yoryos Valotassios (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-5715?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=39018#action_39018 ] 

Yoryos Valotassios commented on HHH-5715:
-----------------------------------------

I've created a branch with the test cases: https://github.com/valotas/hibernate-core/tree/HHH-5715. I've also done a pull request.

> Using row_number with the SQLServerDialect makes select distinct useless
> ------------------------------------------------------------------------
>
>                 Key: HHH-5715
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5715
>             Project: Hibernate Core
>          Issue Type: Bug
>          Components: core
>            Reporter: Yoryos Valotassios
>
> Given class A with one to many relations to class B, when trying to get paginated data with SQLServerDialect from class A with a join clause to class B will dublicated A instances. That is because the row_number function will introduce another value to the select statement which will alway be different for each row. I found a work around using group by. Did not have time finish the test cases yet.

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