Lucene is not matching strings having upper characters
问题 I am using Lucene Search Engine (v36), with the StandardAnalyzer. I use the MultiFieldQueryParser. One of my fields is set as NOT_ANALYZED, because it's a version name containing alphanumeric characters and points. When this field contains an upper character, the search finds no results. Any Idea ? Details: The field contains values like: version1.26.12.test.a version1.26.12.test.b v1.2 version1.Dummy My search is returning results for the three first example above, but not for the last one.