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https://issues.apache.org/jira/browse/OLINGO-635?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14547638#comment-14547638
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Ralf Handl commented on OLINGO-635:
-----------------------------------
The two $count queries are correct.
The second query is syntactically incorrect if "Products" is a to-many
navigation (as its name suggests and as it is used in the specificaiton). As
there can be many products related to a category, the query has to specify
whether the condtion has to be true for at least one related product, or
whether it has to be true for all related products:
http://host/service/Categories?$filter=Products/any(p:p/qty lt 10)
http://host/service/Categories?$filter=Products/all(p:p/qty lt 10)
> Parsing error when $filter uses navigational style queries
> ----------------------------------------------------------
>
> Key: OLINGO-635
> URL: https://issues.apache.org/jira/browse/OLINGO-635
> Project: Olingo
> Issue Type: Bug
> Components: odata4-server
> Affects Versions: V4 4.0.0-beta-01
> Reporter: Ramesh Reddy
> Assignee: Christian Amend
>
> The following types are queries are failing pass URIParser.
> See 11.2.9 in V4 spec for more information
> [http://docs.oasis-open.org/odata/odata/v4.0/errata02/os/complete/part1-protocol/odata-v4.0-errata02-os-part1-protocol-complete.html#_Toc406398314]
> http://host/service/Categories?$filter=Products/$count lt 10
> http://host/service/Categories?$filter=Products/qty lt 10
> http://host/service/Cateoriges?$orderby=Products/$count
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