[jira] [Commented] (SOLR-14601) Using [child] and [subquery] DocTransformer / FieldList

["Mikhail Khludnev (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-14601?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17147076#comment-17147076 ] 

Mikhail Khludnev commented on SOLR-14601:
-----------------------------------------

Hi, [~Thomas Taroni], is it possible to specify {{fl}} inside of {{[child fl...}}] ?

> Using [child] and [subquery] DocTransformer / FieldList
> -------------------------------------------------------
>
>                 Key: SOLR-14601
>                 URL: https://issues.apache.org/jira/browse/SOLR-14601
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: SearchComponents - other
>    Affects Versions: master (9.0), 8.5.2
>         Environment: Docker Container 8.5.2 from Docker Hub
> Already existing in 9.0.0
>            Reporter: Thomas Taroni
>            Priority: Major
>
> If you are using in the fl parameter something like that and luceneMatchVersion is higher or equals then 8.0.0 :
> fl=*,[child],customer:[subquery] or
>  fl=*,customer:[subquery],[child]
> It ends Up in any case in the following error (BadRequest) inside the SubQueryAugmenterFactory:
> {code:java}
> // code placeholder
> if (conflictMap.containsKey(field)) {
>  throw new SolrException(ErrorCode.BAD_REQUEST,"[subquery] name "+field+" is uplicated");
> } else {
>  conflictMap.put(field, true);
> }
> {code}
> It looks like that the following Snippet in ChildDocTransformerFactory(8.5.2 and 9.0.0) already have added that field to the context.
> {code:java}
> // code placeholder 8.5.2
> String childReturnFields = params.get("fl");
> SolrReturnFields childSolrReturnFields;
> if(childReturnFields != null) {
>   childSolrReturnFields = new SolrReturnFields(childReturnFields, req);
> } else if(req.getSchema().getDefaultLuceneMatchVersion().major < 8) {
>   // ensure backwards for versions prior to SOLR 8
>   childSolrReturnFields = new SolrReturnFields();
> } else {
>   childSolrReturnFields = new SolrReturnFields(req);
> }
> {code}
> {code:java}
> // code placeholder master 9.0.0
> String childReturnFields = params.get("fl");
> SolrReturnFields childSolrReturnFields;
> if (childReturnFields != null) {
>   childSolrReturnFields = new SolrReturnFields(childReturnFields, req);
> } else {
>   childSolrReturnFields = new SolrReturnFields(req);
> }
> {code}
> It looks like childReturnFields includes also the customer:[subquery], eventually is a good idea to remove fields from other AugmenterFactories like [shard] or [subquery] from the childReturnFields variable
>  



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