Match type "cased" for struct fields does not return results for case sensitive search

[akash-iconnect]

Describe the bug
Match type "cased" for struct fields does not return results for case sensitive search

To Reproduce
For below document schema

field attributes type array<attr> {
    struct-field attributeName {
        indexing: summary | attribute
        match: cased
    }
    struct-field merged {
        indexing: summary | attribute
        match: cased
    }
}

Document example -

"attributes": [
    {
        "attributeName": "Size",
        "merged": "XL",
    }
]

YQL search query
select * from sources ecommerce.products where attributes contains sameElement(attributeName contains "Size")

it returns 0 results, even though match type is "cased" and document has attributeName "Size". But if i change case of size to all lower case it returns results. Result consists of case insensitive search.

Expected behavior
Struct fields should respect match type cased while searching.

Screenshots
If applicable, add screenshots to help explain your problem.

Environment (please complete the following information):

• OS: Mac Os
• Infrastructure: local docker setup

Vespa version
Vespa CLI version 8.323.45

[bjormel]

@akash-iconnect , can you add trace.level=7 and share the trace?

https://docs.vespa.ai/en/reference/query-api-reference.html#trace.level

[akash-iconnect]

@akash-iconnect , can you add trace.level=7 and share the trace?

https://docs.vespa.ai/en/reference/query-api-reference.html#trace.level

Sure, i have attached full logs below.

vespa trace logs.txt