Thanks for your reply. I couldn't make it work. Everything went fine when I applied the patch and compiled Solr, but I couldn't use the FunctionQuery with it.
My FunctionQuery accesses the field "text" in the document, however the parent doesn't have that field, so the plugin raises an exception. When I suppress the exception and return the minimum value instead, nothing happens. *Example of my query:* "q": "*:*", "parent_filter": "content_type:parent" "child_filter": "content_type:child" "indent": "true" "fl": "*,[child parentFilter=$parent_filter childFilter=$child_filter]" "fq": "{!parent which=$parent_filter v=$child_filter scoreMode=Max}" "sort": "analyzeText(text) desc" *Another example for what I'm doing in the FunctionQuery plugin (This isn't the original code):* public FunctionValues getValues(Map map, AtomicReaderContext atomicReaderContext) throws IOException { final FunctionValues values = mValueSource.getValues(map,atomicReaderContext); return new FunctionValues() { @Override public float floatVal(int i) { String value = values.strVal(i); if(value == null || value.isEmpty()) { return Float.NaN; } return value.length(); ... ... ... Other functions that use the and returns the floatVal value Very grateful for your help, Dor Mikhail Khludnev wrote > pickup the patch https://issues.apache.org/jira/browse/SOLR-5882 and/or > chase committers. > > On Fri, Jun 5, 2015 at 10:35 AM, DorZion < > Dorzion@ > > wrote: > >> Hey, >> >> I'm using Solr 5.0.0 and I'm trying to sort documents with >> FunctionQueries. >> The problem is that I'm trying to sort those documents with their child >> documents elements. >> >> Here is an example: >> I have three documents, one is parent, the others are child documents >> (_childDocuments_). >> >> { >> "id": "ArticleGuid", >> "title" : "Sorting Child Documents", >> "content_type": "article", >> "_childDocuments_": [ >> { >> "id": "CommentGuid", >> "content_type": "comment", >> "text": "CommentText" >> }, >> { >> "id": "CommentGuid2", >> "content_type": "comment", >> "text": "CommentText" >> } >> ] >> } >> * >> * This is just an example, the schema and the data aren't real.* >> >> I want to analyze & run an algorithm on the comments text, then sort the >> parent documents by it - *This would work with FunctionQuery, if I had >> one >> comment for each article and didn't use child documents*. >> I tried to use the LeafReadContext to get the children, but with no luck. >> >> Is there any way to reach the children through FunctionQuery, or even use >> something else to do what I want? >> >> >> Thanks in advance, >> >> Dor >> >> >> >> -- >> View this message in context: >> http://lucene.472066.n3.nabble.com/Sorting-documents-by-nested-child-docs-with-FunctionQueries-tp4209940.html >> Sent from the Solr - User mailing list archive at Nabble.com. >> > > > > -- > Sincerely yours > Mikhail Khludnev > Principal Engineer, > Grid Dynamics > > <http://www.griddynamics.com> > < > mkhludnev@ > > -- View this message in context: http://lucene.472066.n3.nabble.com/Sorting-documents-by-nested-child-docs-with-FunctionQueries-tp4209940p4210646.html Sent from the Solr - User mailing list archive at Nabble.com.