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https://issues.apache.org/jira/browse/LUCENE-6950?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15073468#comment-15073468
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Robert Muir commented on LUCENE-6950:
-------------------------------------
I don't think we need the conditional or the setter, the bug is that 0's are
bogusly passed to both in the constructor?
> DimensionalRangeQuery not working with UninvertingReader
> --------------------------------------------------------
>
> Key: LUCENE-6950
> URL: https://issues.apache.org/jira/browse/LUCENE-6950
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Ishan Chattopadhyaya
> Attachments: LUCENE-6950.patch
>
>
> As I was trying out dimensional fields for SOLR-8396, I realized that
> DimensionalRangeQuery is not working with UninvertingReader.
> In Solr, all directory readers are wrapped by an UninvertingReader and an
> ExitableDirectoryReader.
> Here's the error:
> {code}
> Exception in thread "main" java.lang.IllegalArgumentException: field="rating"
> was indexed with numDims=0 but this query has numDims=1
> at
> org.apache.lucene.search.DimensionalRangeQuery$1.scorer(DimensionalRangeQuery.java:186)
> at org.apache.lucene.search.Weight.bulkScorer(Weight.java:135)
> at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:667)
> at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:474)
> at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:593)
> at
> org.apache.lucene.search.IndexSearcher.searchAfter(IndexSearcher.java:451)
> at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:462)
> at
> DimensionalRangeQueryExample.query(DimensionalRangeQueryExample.java:66)
> {code}
> Here's an example program to trigger this failure:
> {code}
> import java.io.IOException;
> import java.util.HashMap;
> import java.util.Map;
> import java.util.Random;
> import org.apache.lucene.analysis.standard.StandardAnalyzer;
> import org.apache.lucene.document.DimensionalIntField;
> import org.apache.lucene.document.Document;
> import org.apache.lucene.document.Field;
> import org.apache.lucene.document.Field.Store;
> import org.apache.lucene.document.LegacyIntField;
> import org.apache.lucene.document.StringField;
> import org.apache.lucene.document.TextField;
> import org.apache.lucene.index.DirectoryReader;
> import org.apache.lucene.index.IndexWriter;
> import org.apache.lucene.index.IndexWriterConfig;
> import org.apache.lucene.index.StoredDocument;
> import org.apache.lucene.queryparser.classic.ParseException;
> import org.apache.lucene.search.DimensionalRangeQuery;
> import org.apache.lucene.search.IndexSearcher;
> import org.apache.lucene.search.LegacyNumericRangeQuery;
> import org.apache.lucene.search.Query;
> import org.apache.lucene.search.ScoreDoc;
> import org.apache.lucene.search.TopDocs;
> import org.apache.lucene.store.Directory;
> import org.apache.lucene.store.RAMDirectory;
> import org.apache.lucene.uninverting.UninvertingReader;
> import org.apache.lucene.util.BytesRef;
> public class DimensionalRangeQueryExample {
> public static void main(String[] args) throws IOException,
> ParseException {
> StandardAnalyzer analyzer = new StandardAnalyzer();
> Directory index = new RAMDirectory();
> IndexWriterConfig config = new IndexWriterConfig(analyzer);
> IndexWriter w = new IndexWriter(index, config);
> addDoc(w, "Lucene in Action", 1);
> addDoc(w, "Lucene for Dummies", 2);
> addDoc(w, "Managing Gigabytes", 3);
> addDoc(w, "The Art of Computer Science", 4);
> w.commit();
> w.close();
> DirectoryReader reader = (DirectoryReader.open(index));
> Map<String, UninvertingReader.Type> uninvertingMap = new
> HashMap<>();
> uninvertingMap.put("id", UninvertingReader.Type.BINARY);
> uninvertingMap.put("rating", UninvertingReader.Type.INTEGER);
> reader = UninvertingReader.wrap(reader, uninvertingMap);
> IndexSearcher searcher = new IndexSearcher(reader);
> Query legacyQuery =
> LegacyNumericRangeQuery.newIntRange("rating_legacy", 1, 4, true, true);
> Query dimensionalQuery =
> DimensionalRangeQuery.new1DIntRange("rating", 1, true, 4, true);
> System.out.println("Legacy query: ");
> query(legacyQuery, searcher); // works
> System.out.println("Dimensional query: ");
> query(dimensionalQuery, searcher); // fails
>
> reader.close();
> }
> private static void query(Query q, IndexSearcher searcher) throws
> IOException {
> int hitsPerPage = 10;
> TopDocs docs = searcher.search(q, hitsPerPage);
> ScoreDoc[] hits = docs.scoreDocs;
> System.out.println("Found " + hits.length + " hits.");
> for(int i=0;i<hits.length;++i) {
> int docId = hits[i].doc;
> StoredDocument d = searcher.doc(docId);
> System.out.println((i + 1) + ". " + d);
> }
> }
> private static void addDoc(IndexWriter w, String title, int rating)
> throws IOException {
> Document doc = new Document();
> String id = ""+new Random().nextInt(1000);
> byte idBytes[] = id.getBytes();
> doc.add(new StringField("id", new BytesRef(idBytes),
> Store.YES));
> doc.add(new TextField("title", title, Field.Store.YES));
> doc.add(new DimensionalIntField("rating", rating));
> LegacyIntField legacy = new LegacyIntField("rating_legacy",
> rating, Store.YES);
> legacy.setIntValue(rating);
> doc.add(legacy);
> w.addDocument(doc);
> }
> }
> {code}
> I don't yet know more as to why this could be. [~mikemccand] Any ideas,
> please?
> Apologies if I should've brought this up in the mailing lists, or as a
> comment in LUCENE-6917 itself.
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