Set of UDT with uuid not working

[28Smiles]

Elassandra version: 6.8.4.13

Steps to reproduce:

CREATE TYPE role_key (
    course_id uuid,
    role_id uuid
)

CREATE TABLE "user"
(
    name text,
    roles set<frozen<role_key>>,

    PRIMARY KEY (name)
);

curl -XPUT -H 'Content-Type: application/json' 'http://localhost:9200/user' -d '{ "settings": { "keyspace": "alpha" }, "mappings": { "user": { "discover": ".*"} } }'

Returns:

{
   "error":{
      "root_cause":[
         {
            "type":"mapper_parsing_exception",
            "reason":"Failed to execute query:null : Field \"course_id\" with type uuid does not match updated type text"
         }
      ],
      "type":"mapper_parsing_exception",
      "reason":"Failed to execute query:null : Field \"course_id\" with type uuid does not match updated type text",
      "caused_by":{
         "type":"invalid_request_exception",
         "reason":"Field \"course_id\" with type uuid does not match updated type text"
      }
   },
   "status":400
}

I do not completely understand the problem (exept what causes it, but not why). I have read #185 and thought sets would work this way? I have searched on google and read the doc, but I am not able to find an answer. Help would be highly appreciated. Also if someone could explain what an "updated type" is it would be highly appreciated by me.

[28Smiles]

I've now tried several ways to get this to work.

{
	"settings": {
		"keyspace": "alpha"
	},
	"mappings": {
		"user": {
			"discover": "^((?!roles).*)",
			"properties": {
				"roles": {
					"type": "nested",
					"cql_struct": "set",
					"properties": {
						"course_id": {
							"type": "text"
						},
						"role_id": {
							"type": "text"
						}
					}
				}
			}
		}
	}
}

Type keyword, fails with:

java.lang.IllegalArgumentException: cannot write xcontent for unknown value of type class java.util.UUID
        at org.elasticsearch.common.xcontent.XContentBuilder.unknownValue(XContentBuilder.java:855)
        at org.elasticsearch.common.xcontent.XContentBuilder.value(XContentBuilder.java:822)
        at org.elasticsearch.common.xcontent.XContentBuilder.field(XContentBuilder.java:807)
        at org.elassandra.cluster.Serializer.toXContent(Serializer.java:399)
        at org.elassandra.cluster.Serializer.toXContent(Serializer.java:363)
        at org.elassandra.cluster.QueryManager.buildDocument(QueryManager.java:106)
        at org.elassandra.cluster.QueryManager.source(QueryManager.java:224)
        at org.elasticsearch.search.fetch.FetchPhase.processCqlResultSet(FetchPhase.java:514)
        at org.elasticsearch.search.fetch.FetchPhase.loadStoredFields(FetchPhase.java:540)
        at org.elasticsearch.search.fetch.FetchPhase.createSearchHit(FetchPhase.java:217)
        at org.elasticsearch.search.fetch.FetchPhase.execute(FetchPhase.java:169)
        at org.elasticsearch.search.SearchService.executeFetchPhase(SearchService.java:424)
        at org.elasticsearch.search.SearchService.executeQueryPhase(SearchService.java:404)
        at org.elasticsearch.search.SearchService.access$100(SearchService.java:127)
        at org.elasticsearch.search.SearchService$2.onResponse(SearchService.java:360)
        at org.elasticsearch.search.SearchService$2.onResponse(SearchService.java:356)
        at org.elasticsearch.search.SearchService$4.doRun(SearchService.java:1114)
        at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37)
        at org.elasticsearch.common.util.concurrent.TimedRunnable.doRun(TimedRunnable.java:41)
        at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:751)
        at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)

Type text does not, BUT: Using type text the result is of every query is empty. I have no explanation for this behavior. If no one is responing to this issue i will have to use the Text cql type for the udt and call it a day. But I am most certainly not happy with this solution.