Indices.ExistsAsync throw exception due to ICU field

[feherbbj]

Elastic.Clients.Elasticsearch version: 8.12.

Elasticsearch version: 8.12.2

.NET runtime version: 8.0

Description of the problem including expected versus actual behavior:
I have an ES instance with ICU plugin installed, when i call Indices.ExistsAsync(...) it throws exception because it cannot deserialize a property with field icu_collation_keyword to 'Mapping.IProperty'

Expected behavior
This used to work in 7.x

[flobernd]

Hi @feherbbj,

could you please send me the response JSON payload so that I can reproduce the issue?

[feherbbj]

index is like:

{
   ...,
   "mappings": {
      "properties": {
         "itemname": {
            "type": "text",
            "fields": {
               ...
               "icu": { "type": "icu_collation_keyword" }
            }
         }
      }
   }
}

The repsonse is for await client.Indices.GetAsync(Indices.All):
Elastic.Transport.UnexpectedTransportException : Encountered an unsupported variant tag 'icu_collation_keyword' on 'Mapping.IProperty', which could not be deserialized.
----> System.Text.Json.JsonException : Encountered an unsupported variant tag 'icu_collation_keyword' on 'Mapping.IProperty', which could not be deserialized.
at Elastic.Transport.DefaultHttpTransport1.ThrowUnexpectedTransportException[TResponse](Exception killerException, List1 seenExceptions, RequestData requestData, TResponse response, RequestPipeline pipeline)
at Elastic.Transport.DefaultHttpTransport`1.RequestCoreAsync[TResponse](Boolean isAsync, HttpMethod method, String path, PostData data, RequestParameters requestParameters, OpenTelemetryData openTelemetryData, CancellationToken cancellationToken)

[flobernd]

Thank you! I was able to identify the problem. Some generator modifications are required here.

[flobernd]

@feherbbj Could you please double check this as well in 8.13.x when you are ready to migrate? This should already be fixed as well.

[github-actions]

This issue is stale because it has been open 5 days with no activity. Remove stale label or comment or this will be closed in 2 days.

[feherbbj]

i can confirm, this issue is fixed