Re: matching "starts with" only
I'd recommend that you spend some time with the admin/analysis page. KeywordTokenizer doesn't break up the input at _all_. So the text "this is a black cat" will never match anything that starts out "black". String is even more restrictive, it not only doesn't tokenize, it won't allow lower case. You haven't articulated the use-case you're really trying to support. Is it a requirement that you always match from the left? I.e. if the text is "this is a black cat" you don't want to match on "black cat", but require "this is a black cat"? If so try EdgeNgramTokenizer. Best, Erick On Tue, Aug 12, 2014 at 11:47 PM, zameer wrote: > On solr3.6 search while giving query "black\ cat*"(as you mentioned in > post), > I am not getting any result. > Instead of "black\ cat*" if I am querying "black*\ cat*", its giving result > as > black forest cat > black cat > black color cat. > > But I need only these type result i.e. > black cat > black cat is beautiful > black cat and dog > > Note: I am using solr3.6 > > > Erick Erickson wrote > > Right, this is a quirk of phrase queries. For wildcards to work in phrase > > queries you need SOLR-1604 (ComplexPhraseQueryParser). > > > > Or you need to escape your spaces, i.e. > > black\ cat* > > > > Best, > > Erick > > > > > > On Tue, Aug 5, 2014 at 11:09 PM, zameer < > > > zameerulhasan121@ > > > > wrote: > > > >> If we search only "black*" it works but when we use search text "black > >> cat*" > >> or "(black cat)*" or "(black cat*)*" it come blank. > >> > >> > > >> > > positionIncrementGap="100"> > >> > > > >> > > > >> > > > >> > > > >> > > > >> > >> > > >> > > type="text_general_long"/> > >> > >> Thank you in advance > >> > >> > >> > >> > >> -- > >> View this message in context: > >> > http://lucene.472066.n3.nabble.com/matching-starts-with-only-tp4094430p4151379.html > >> Sent from the Solr - User mailing list archive at Nabble.com. > >> > > > > > > -- > View this message in context: > http://lucene.472066.n3.nabble.com/matching-starts-with-only-tp4094430p4152662.html > Sent from the Solr - User mailing list archive at Nabble.com. >
Re: matching "starts with" only
On solr3.6 search while giving query "black\ cat*"(as you mentioned in post), I am not getting any result. Instead of "black\ cat*" if I am querying "black*\ cat*", its giving result as black forest cat black cat black color cat. But I need only these type result i.e. black cat black cat is beautiful black cat and dog Note: I am using solr3.6 Erick Erickson wrote > Right, this is a quirk of phrase queries. For wildcards to work in phrase > queries you need SOLR-1604 (ComplexPhraseQueryParser). > > Or you need to escape your spaces, i.e. > black\ cat* > > Best, > Erick > > > On Tue, Aug 5, 2014 at 11:09 PM, zameer < > zameerulhasan121@ > > wrote: > >> If we search only "black*" it works but when we use search text "black >> cat*" >> or "(black cat)*" or "(black cat*)*" it come blank. >> >> > > > positionIncrementGap="100"> >> > >> > >> > >> > >> > >> >> > > > type="text_general_long"/> >> >> Thank you in advance >> >> >> >> >> -- >> View this message in context: >> http://lucene.472066.n3.nabble.com/matching-starts-with-only-tp4094430p4151379.html >> Sent from the Solr - User mailing list archive at Nabble.com. >> -- View this message in context: http://lucene.472066.n3.nabble.com/matching-starts-with-only-tp4094430p4152662.html Sent from the Solr - User mailing list archive at Nabble.com.
Re: matching "starts with" only
Right, this is a quirk of phrase queries. For wildcards to work in phrase queries you need SOLR-1604 (ComplexPhraseQueryParser). Or you need to escape your spaces, i.e. black\ cat* Best, Erick On Tue, Aug 5, 2014 at 11:09 PM, zameer wrote: > If we search only "black*" it works but when we use search text "black > cat*" > or "(black cat)*" or "(black cat*)*" it come blank. > > positionIncrementGap="100"> > > > > > > > type="text_general_long"/> > > Thank you in advance > > > > > -- > View this message in context: > http://lucene.472066.n3.nabble.com/matching-starts-with-only-tp4094430p4151379.html > Sent from the Solr - User mailing list archive at Nabble.com. >
Re: matching "starts with" only
If we search only "black*" it works but when we use search text "black cat*" or "(black cat)*" or "(black cat*)*" it come blank. Thank you in advance -- View this message in context: http://lucene.472066.n3.nabble.com/matching-starts-with-only-tp4094430p4151379.html Sent from the Solr - User mailing list archive at Nabble.com.
Re: matching "starts with" only
Be aware that the string type is not analyzed in any way, so your searches are case sensitive. There's a "lowercase" type in the example schema.xml that combines KeywordTokenizer with LowercaseFilter for case-insensitive searches that you might find useful. Besides regex, this might be a good place or wildcards, just black*. Best, Erick On Thu, Oct 10, 2013 at 7:31 AM, adm1n wrote: > I've changed the field name to string type, the default one presented in > schema.xml, and I got what I needed. > > > thanks for your time. > > > > -- > View this message in context: > http://lucene.472066.n3.nabble.com/matching-starts-with-only-tp4094430p4094637.html > Sent from the Solr - User mailing list archive at Nabble.com.
Re: matching "starts with" only
I've changed the field name to string type, the default one presented in schema.xml, and I got what I needed. thanks for your time. -- View this message in context: http://lucene.472066.n3.nabble.com/matching-starts-with-only-tp4094430p4094637.html Sent from the Solr - User mailing list archive at Nabble.com.
Re: matching "starts with" only
search by "starts with" is something new I have to add, as well as the data I have to index for this purpose, so it's ok to create a new field. But once I added the following field type: And: indexing, and afterwards searching by "my_name:/^black/ returns no results, while searching by "my_name:black" returns only "black" document. What am I missing? thanks. -- View this message in context: http://lucene.472066.n3.nabble.com/matching-starts-with-only-tp4094430p4094453.html Sent from the Solr - User mailing list archive at Nabble.com.
Re: matching "starts with" only
On 10/9/2013 2:16 PM, adm1n wrote: Why this field have to be copyField? Couldn't it be a single field, for I always assume that people already are using the existing field and type for other purposes. Offering advice without making that assumption will usually result in people making a change and then complaining that something else no longer works. If you don't need what you already have for something else, then you could change the type on the existing field with no problem. Thanks, Shawn
Re: matching "starts with" only
Shawn Heisey-4: thanks for the quick response. Why this field have to be copyField? Couldn't it be a single field, for example: thanks. -- View this message in context: http://lucene.472066.n3.nabble.com/matching-starts-with-only-tp4094430p4094447.html Sent from the Solr - User mailing list archive at Nabble.com.
Re: matching "starts with" only
On 10/9/2013 12:57 PM, adm1n wrote: My index contains documents which could be a single word or a short sentence which contains up to 4-5 words. I need to return documents, which "starts with" only from the searched pattern. in regex it would be [^my_query]. for example, for a docs: black beautiful black cat cat cat is black black cat and for the query: "black" only "black" and "black cat" should be returned. The text field I'm using is as follows: Solr version is 4.2 thanks! The presence of either the whitespace tokenizer or the NGram filter make this impossible, because they both break the indexed value into smaller pieces. Together, they *really* break things up. Matching is done on a per-term basis, and these two components in your analysis chain ensure that "black" will be a term for all of those input documents, whether it appears at the beginning, middle, or end. If you set up a copyField to a new field whose fieldType uses the Keyword tokenizer (which treats the entire string as a single token) and the lowercase filter, you would be able use the regex support in Solr 4.x and have this as your query string: newfield:/^black/ Thanks, Shawn
