Ishan Chattopadhyaya created LUCENE-6950:
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Summary: 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
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 SOLR-6917 itself.
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