[
https://issues.apache.org/jira/browse/CAY-2911?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Nikita Timofeev updated CAY-2911:
---------------------------------
Fix Version/s: 5.0-M2
> Vertical Inheritance: Column Select Sometimes Null With Vertically Inherited
> Entity
> -----------------------------------------------------------------------------------
>
> Key: CAY-2911
> URL: https://issues.apache.org/jira/browse/CAY-2911
> Project: Cayenne
> Issue Type: Bug
> Affects Versions: 5.0-M1
> Reporter: Jadon Hansell
> Priority: Major
> Fix For: 5.0-M2
>
> Attachments: CAY_column_query_issue.patch
>
>
> This issue has symptoms similar to CAY-2552, where in EntityRowReader the
> fields size from segmentMetadata isn't equal to columns list size in
> RowDescriptor.
> I think this might be caused by multiple columns in the RowDescriptor having
> the same name, so they overwrite each other when building the fields map in
> the segmentMetadata.
> I have attached a patch including a breaking test on master.
> The test contains the following: say I have two abstract entities
> {{Document}} and {{{}DocumentLine{}}}. {{Document}} has child entities
> {{DocumentA}} and {{{}DocumentB{}}}. {{DocumentLine}} has child entities
> {{DocumentALine}} and {{{}DocumentBLine{}}}.
> {{DocumentLine}} has a many-to-one relationship to {{Document}} called
> "{{{}document{}}}" with foreign key {{{}DOCUMENT_LINE.DOCUMENT_ID{}}}.
> {{DocumentB}} has a one-to-one relationship to {{DocumentA}} named
> "{{{}relatedA{}}}", with a foreign key {{{}DOCUMENT_B.RELATED_A_ID{}}}. If
> this relationship is removed the test passes.
> If I query {{DocumentALine}} and column select {{DocumentALine.DOCUMENT}} to
> get its corresponding {{{}DocumentA{}}}, it works correctly. If I query
> {{DocumentBLine}} and column select {{DocumentBLine.DOCUMENT}} to get its
> corresponding {{{}DocumentB{}}}, it returns {{{}null{}}}.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
