In our case, the lower-casing is happening in a custom Java indexer code, via Java's String.toLowerCase() method.
I used the analysis tool in Solr admin (with Jetty). I believe the raw bytes explain this. Attached are the results for beyonce in file beyonce_no_spl_chars.JPG and beyoncé in file beyonce_with_spl_chars.JPG. Raw bytes for beyonce: [62 65 79 6f 6e 63 65] Raw bytes for beyoncé:[62 65 79 6f 6e 63 65 cc 81] So when you look at the bytes, it seems to explain why beyonce* matches beyoncé. I tried your approach with a KeywordTokenizer followed by a LowerCaseFilter, but I see the same behavior. On Mon, Feb 23, 2015 at 5:16 PM, Jack Krupansky <jack.krupan...@gmail.com> wrote: > But how is that lowercasing occurring? I mean, solr.StrField doesn't do > that. > > Some containers default to automatically mapping accented characters, so > that the accented "e" would then get indexed as a normal "e", and then your > wildcard would match it, and an accented "e" in a query would get mapped as > well and then match the normal "e" in the index. What does your query > response look like? > > This blog post explains that problem: > http://bensch.be/tomcat-solr-and-special-characters > > Note that you could make your string field a text field with the keyword > tokenizer and then filter it for lower case, such as when the user query > might have a capital "B". String field is most appropriate when the field > really is 100% raw. > > > -- Jack Krupansky > > On Mon, Feb 23, 2015 at 7:37 PM, Arun Rangarajan <arunrangara...@gmail.com > > > wrote: > > > Yes, it is a string field and not a text field. > > > > <fieldType name="string" class="solr.StrField" sortMissingLast="true" > > omitNorms="true"/> > > <field name="raw_name" type="string" indexed="true" stored="true" /> > > > > Lower-casing done to do case-insensitive matching. > > > > On Mon, Feb 23, 2015 at 4:01 PM, Jack Krupansky < > jack.krupan...@gmail.com> > > wrote: > > > > > Is it really a string field - as opposed to a text field? Show us the > > field > > > and field type. > > > > > > Besides, if it really were a "raw" name, wouldn't that be a capital > "B"? > > > > > > -- Jack Krupansky > > > > > > On Mon, Feb 23, 2015 at 6:52 PM, Arun Rangarajan < > > arunrangara...@gmail.com > > > > > > > wrote: > > > > > > > I have a string field raw_name like this in my document: > > > > > > > > {raw_name: beyoncé} > > > > > > > > (Notice that the last character is a special character.) > > > > > > > > When I issue this wildcard query: > > > > > > > > q=raw_name:beyonce* > > > > > > > > i.e. with the last character simply being the ASCII 'e', Solr returns > > me > > > > the above document. > > > > > > > > How do I prevent this? > > > > > > > > > >
