gkatoch opened a new issue, #869:
URL: https://github.com/apache/lucenenet/issues/869
**Description:**
I am using StandardAnyalzer to retrieve the stored data using wildcards.
This works fine for almost all cases but when I use a wildcard with a
restricted character like Hyphen, the matching data is not retrieved.
**Steps to reproduce:**
You can run the following code to see this behavior:
```
public static void Test()
{
// Use an in-memory index.
var indexDirectory = new RAMDirectory();
Analyzer analyzer = new
StandardAnalyzer(LuceneVersion.LUCENE_48);
using (var writer = new IndexWriter(indexDirectory, new
IndexWriterConfig(LuceneVersion.LUCENE_48, analyzer)))
{
var document = new Document
{
new TextField("content", "This is just some text",
Field.Store.YES),
new TextField("cataloguenumber", "DF-TESTER",
Field.Store.YES)
};
writer.AddDocument(document);
}
var parser = new MultiFieldQueryParser(
LuceneVersion.LUCENE_48,
new[] { "cataloguenumber", "content" },
analyzer)
{
AllowLeadingWildcard = true
};
var directoryReader = DirectoryReader.Open(indexDirectory);
var searcher = new IndexSearcher(directoryReader);
DoSearch("DF-TES", parser, searcher); // Returns the matching
document
DoSearch("DF-TES*", parser, searcher); // Does not return
anything
}
private static void DoSearch(string queryString,
MultiFieldQueryParser parser, IndexSearcher searcher)
{
var query = parser.Parse(queryString);
var docs = searcher.Search(query, 10);
foreach (var scoreDoc in docs.ScoreDocs)
{
var searchHit = searcher.Doc(scoreDoc.Doc);
var cataloguenumber =
searchHit.GetValues("cataloguenumber").FirstOrDefault();
var content =
searchHit.GetValues("content").FirstOrDefault();
Console.WriteLine($"Found object: {cataloguenumber}
{content}");
}
}
```
When I run the above code, method `DoSearch` with query string: `DF-TES`
returns the valid result, however with `DF-TES*` this does not return anything.
It looks like the query is not rewritten correctly when I am adding a Wildcard
and hence leading to this behavior.
**Expected behavior**
On running the above example with wildcards we should get the matching
result set.
Let me know if any more details are needed or if I haven't understood this
correctly.
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