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https://issues.apache.org/jira/browse/OLINGO-1143?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16207685#comment-16207685
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Stefan Hasse commented on OLINGO-1143:
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I could reproduce this issue, but only in combination with select...
{{/Customers?$expand=addresses/country}} works like expected and the result has
country within addresses expanded
{{/Customers?$select=name&$expand=addresses/country}} I expected to get name
and addresses, but as addresses is a complex type that is not selected I get
name only
Based on the standard [5.1.3 System Query Option
$select|http://docs.oasis-open.org/odata/odata/v4.0/errata03/os/complete/part2-url-conventions/odata-v4.0-errata03-os-part2-url-conventions-complete.html#_Toc453752360]
{quote}selectProperty = primitiveProperty
/ primitiveColProperty
/ *navigationProperty*
/ selectPath [ "/" selectProperty ]{quote} a workaround could be
{{/Customers?$select=name,addresses/country&$expand=addresses/country}}
> Expand of a navigation property of a complex type does not render
> -----------------------------------------------------------------
>
> Key: OLINGO-1143
> URL: https://issues.apache.org/jira/browse/OLINGO-1143
> Project: Olingo
> Issue Type: Bug
> Components: odata4-server
> Affects Versions: (Java) V4 4.3.0
> Reporter: Simon Ammer
> Priority: Blocker
>
> Here is an example URL provided in the [OData URL
> Conventions|https://docs.oasis-open.org/odata/odata/v4.0/odata-v4.0-part2-url-conventions.pdf#page=37]
> that could be used to reproduce the issue:
> [http://host/service/Customers?$expand=Addresses/Country]
> The ODataJsonSerializer only processes _Addresses_ but ignores _Country_.
> Therefore only the _Addresses_ are shown in the response.
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