[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-3636) Attempt to read invalid column when loading collection of subclasses mapped with table-per-subclass with discriminator

[Chris Bredesen (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-3636?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=31905#action_31905 ] 

Chris Bredesen commented on HHH-3636:
-------------------------------------

This results in an error something like this:

INFO IntegerType:203 - could not read column value from result set: l4_3_; Invalid column name 

> Attempt to read invalid column when loading collection of subclasses mapped with table-per-subclass with discriminator
> ----------------------------------------------------------------------------------------------------------------------
>
>                 Key: HHH-3636
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3636
>             Project: Hibernate Core
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 3.2.4.sp1, 3.2.6, 3.3.1
>            Reporter: Chris Bredesen
>            Assignee: Chris Bredesen
>            Priority: Minor
>   Original Estimate: 6 hours
>          Time Spent: 4 hours
>  Remaining Estimate: 2 hours
>
> This problem is described in this forum post:
> http://forum.hibernate.org/viewtopic.php?t=992703
> Hibernate attempts to read an invalid column from the collection result set when the following conditions are present:
> 1. Instances of a subclass are contained in a collection
> 2. The subclasses are single-table + a <join> (table-per-subclass with discriminator)
> 3. The <join> portion of the subclass contains at least 3 of its own columns
> 4. The <join> tables are fetched by select (non default)

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