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Posted to java-user@lucene.apache.org by Hiren Shah <hi...@gmail.com> on 2012/07/04 08:11:10 UTC
Starts with Query - Return like search
I have used standardAnalyser to save the ANALYZED data in index.
Data is as below:-
1. foo bag test
2. foo bar test
3. bar india foo
I used
When i search using---------------> foo ba
I get all results when i use ------->(+foo* +ba*)
1. I tried using "foo ba" (with double quotes) but no results come as
it searches for exact word
2. I tried using "foo ba*" (with double quotes) but no results come as
it searches for exact word
3. I tried using "foo bar" (with double quotes) Then 2nd result comes
as both words are completed
What should be done to get options 1 and 2 in results when user types foo
ba*. I dont want 3rd result but want 1st 2 results.
Please help.
Thanks
Hiren
Re: Starts with Query - Return like search
Posted by Jack Krupansky <ja...@basetechnology.com>.
Oops... that's EdgeNGramTokenFilter in Lucene.
-- Jack Krupansky
-----Original Message-----
From: Jack Krupansky
Sent: Wednesday, July 04, 2012 4:52 PM
To: java-user@lucene.apache.org
Subject: Re: Starts with Query - Return like search
Here's a Solr field type that supports edge n-grams:
<fieldType name="text_general_edge_ngram" class="solr.TextField"
positionIncrementGap="100">
<analyzer type="index">
<tokenizer class="solr.LowerCaseTokenizerFactory"/>
<filter class="solr.EdgeNGramFilterFactory" minGramSize="2"
maxGramSize="15" side="front"/>
</analyzer>
<analyzer type="query">
<tokenizer class="solr.LowerCaseTokenizerFactory"/>
</analyzer>
</fieldType>
In Lucene, you would use the EdgeNGramFilter.
This is for Lucene/Solr 3.6.
-- Jack Krupansky
-----Original Message-----
From: Hiren Shah
Sent: Wednesday, July 04, 2012 3:20 PM
To: java-user@lucene.apache.org
Subject: Re: Starts with Query - Return like search
Hi Jack
This needs to be taken care while indexing?Where can i get the code for the
edgegram indexing and then searching.?
-Hiren
On Wed, Jul 4, 2012 at 9:19 PM, Jack Krupansky
<ja...@basetechnology.com>wrote:
> You might also consider using the EdgeNGram filter for your documents
> since it would index "bar" as both "ba" and "bar" at the same position,
> eliminating the need for the use of wildcards. It makes the index bigger,
> but eliminates the performance degradation of wildcards. It isn't great
> for
> all situations, but maybe it would work well for your case.
>
> -- Jack Krupansky
>
> -----Original Message----- From: Ian Lea
> Sent: Wednesday, July 04, 2012 4:00 AM
> To: java-user@lucene.apache.org
> Subject: Re: Starts with Query - Return like search
>
>
> In fact there is an FAQ entry Can I combine wildcard and phrase
> search, e.g. "foo ba*"? at
> http://wiki.apache.org/lucene-**java/LuceneFAQ#Can_I_combine_**
> wildcard_and_phrase_search.2C_**e.g._.22foo_ba.2A.22.3F<http://wiki.apache.org/lucene-java/LuceneFAQ#Can_I_combine_wildcard_and_phrase_search.2C_e.g._.22foo_ba.2A.22.3F>
> which suggests you extend the QueryParser to build a MultiPhraseQuery.
> There's also ComplexPhraseQueryParser which looks interesting.
>
>
> --
> Ian.
>
>
> On Wed, Jul 4, 2012 at 9:51 AM, Ian Lea <ia...@gmail.com> wrote:
>
>> Where exactly are you using these double quoted strings? QueryParser?
>> It would help if you showed a code snippet.
>>
>> Assuming your real data is more complex and the strings you are
>> searching for aren't necessarily at the start of the text, you'll need
>> some mix of wildcard and proximity searching. I don't think that "foo
>> ba*"~n
>> will work but I'm sure you'll be able to do it with a SpanQuery or
>> six. SpanNearQuery lets you specify slop and whether you care if
>> matches are in order or not.
>>
>> See
>> http://www.lucidimagination.**com/blog/2009/07/18/the-**spanquery/<http://www.lucidimagination.com/blog/2009/07/18/the-spanquery/>for
>> info on spans.
>>
>> See also http://wiki.apache.org/lucene-**java/LuceneFAQ#Why_am_I_**
>> getting_no_hits_.2BAC8_**incorrect_hits.3F<http://wiki.apache.org/lucene-java/LuceneFAQ#Why_am_I_getting_no_hits_.2BAC8_incorrect_hits.3F>
>> for good tips on figuring out why things aren't doing what you want.
>>
>> Good luck.
>>
>>
>> --
>> Ian.
>>
>>
>> On Wed, Jul 4, 2012 at 7:11 AM, Hiren Shah <hi...@gmail.com>
>> wrote:
>>
>>> I have used standardAnalyser to save the ANALYZED data in index.
>>>
>>> Data is as below:-
>>>
>>> 1. foo bag test
>>> 2. foo bar test
>>> 3. bar india foo
>>>
>>>
>>> I used
>>> When i search using---------------> foo ba
>>> I get all results when i use ------->(+foo* +ba*)
>>>
>>> 1. I tried using "foo ba" (with double quotes) but no results come
>>> as
>>> it searches for exact word
>>> 2. I tried using "foo ba*" (with double quotes) but no results come
>>> as
>>> it searches for exact word
>>> 3. I tried using "foo bar" (with double quotes) Then 2nd result
>>> comes
>>> as both words are completed
>>>
>>> What should be done to get options 1 and 2 in results when user types
>>> foo
>>> ba*. I dont want 3rd result but want 1st 2 results.
>>> Please help.
>>>
>>> Thanks
>>> Hiren
>>>
>>
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Re: Starts with Query - Return like search
Posted by Jack Krupansky <ja...@basetechnology.com>.
Here's a Solr field type that supports edge n-grams:
<fieldType name="text_general_edge_ngram" class="solr.TextField"
positionIncrementGap="100">
<analyzer type="index">
<tokenizer class="solr.LowerCaseTokenizerFactory"/>
<filter class="solr.EdgeNGramFilterFactory" minGramSize="2"
maxGramSize="15" side="front"/>
</analyzer>
<analyzer type="query">
<tokenizer class="solr.LowerCaseTokenizerFactory"/>
</analyzer>
</fieldType>
In Lucene, you would use the EdgeNGramFilter.
This is for Lucene/Solr 3.6.
-- Jack Krupansky
-----Original Message-----
From: Hiren Shah
Sent: Wednesday, July 04, 2012 3:20 PM
To: java-user@lucene.apache.org
Subject: Re: Starts with Query - Return like search
Hi Jack
This needs to be taken care while indexing?Where can i get the code for the
edgegram indexing and then searching.?
-Hiren
On Wed, Jul 4, 2012 at 9:19 PM, Jack Krupansky
<ja...@basetechnology.com>wrote:
> You might also consider using the EdgeNGram filter for your documents
> since it would index "bar" as both "ba" and "bar" at the same position,
> eliminating the need for the use of wildcards. It makes the index bigger,
> but eliminates the performance degradation of wildcards. It isn't great
> for
> all situations, but maybe it would work well for your case.
>
> -- Jack Krupansky
>
> -----Original Message----- From: Ian Lea
> Sent: Wednesday, July 04, 2012 4:00 AM
> To: java-user@lucene.apache.org
> Subject: Re: Starts with Query - Return like search
>
>
> In fact there is an FAQ entry Can I combine wildcard and phrase
> search, e.g. "foo ba*"? at
> http://wiki.apache.org/lucene-**java/LuceneFAQ#Can_I_combine_**
> wildcard_and_phrase_search.2C_**e.g._.22foo_ba.2A.22.3F<http://wiki.apache.org/lucene-java/LuceneFAQ#Can_I_combine_wildcard_and_phrase_search.2C_e.g._.22foo_ba.2A.22.3F>
> which suggests you extend the QueryParser to build a MultiPhraseQuery.
> There's also ComplexPhraseQueryParser which looks interesting.
>
>
> --
> Ian.
>
>
> On Wed, Jul 4, 2012 at 9:51 AM, Ian Lea <ia...@gmail.com> wrote:
>
>> Where exactly are you using these double quoted strings? QueryParser?
>> It would help if you showed a code snippet.
>>
>> Assuming your real data is more complex and the strings you are
>> searching for aren't necessarily at the start of the text, you'll need
>> some mix of wildcard and proximity searching. I don't think that "foo
>> ba*"~n
>> will work but I'm sure you'll be able to do it with a SpanQuery or
>> six. SpanNearQuery lets you specify slop and whether you care if
>> matches are in order or not.
>>
>> See
>> http://www.lucidimagination.**com/blog/2009/07/18/the-**spanquery/<http://www.lucidimagination.com/blog/2009/07/18/the-spanquery/>for
>> info on spans.
>>
>> See also http://wiki.apache.org/lucene-**java/LuceneFAQ#Why_am_I_**
>> getting_no_hits_.2BAC8_**incorrect_hits.3F<http://wiki.apache.org/lucene-java/LuceneFAQ#Why_am_I_getting_no_hits_.2BAC8_incorrect_hits.3F>
>> for good tips on figuring out why things aren't doing what you want.
>>
>> Good luck.
>>
>>
>> --
>> Ian.
>>
>>
>> On Wed, Jul 4, 2012 at 7:11 AM, Hiren Shah <hi...@gmail.com>
>> wrote:
>>
>>> I have used standardAnalyser to save the ANALYZED data in index.
>>>
>>> Data is as below:-
>>>
>>> 1. foo bag test
>>> 2. foo bar test
>>> 3. bar india foo
>>>
>>>
>>> I used
>>> When i search using---------------> foo ba
>>> I get all results when i use ------->(+foo* +ba*)
>>>
>>> 1. I tried using "foo ba" (with double quotes) but no results come
>>> as
>>> it searches for exact word
>>> 2. I tried using "foo ba*" (with double quotes) but no results come
>>> as
>>> it searches for exact word
>>> 3. I tried using "foo bar" (with double quotes) Then 2nd result
>>> comes
>>> as both words are completed
>>>
>>> What should be done to get options 1 and 2 in results when user types
>>> foo
>>> ba*. I dont want 3rd result but want 1st 2 results.
>>> Please help.
>>>
>>> Thanks
>>> Hiren
>>>
>>
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Re: Starts with Query - Return like search
Posted by Hiren Shah <hi...@gmail.com>.
Hi Jack
This needs to be taken care while indexing?Where can i get the code for the
edgegram indexing and then searching.?
-Hiren
On Wed, Jul 4, 2012 at 9:19 PM, Jack Krupansky <ja...@basetechnology.com>wrote:
> You might also consider using the EdgeNGram filter for your documents
> since it would index "bar" as both "ba" and "bar" at the same position,
> eliminating the need for the use of wildcards. It makes the index bigger,
> but eliminates the performance degradation of wildcards. It isn't great for
> all situations, but maybe it would work well for your case.
>
> -- Jack Krupansky
>
> -----Original Message----- From: Ian Lea
> Sent: Wednesday, July 04, 2012 4:00 AM
> To: java-user@lucene.apache.org
> Subject: Re: Starts with Query - Return like search
>
>
> In fact there is an FAQ entry Can I combine wildcard and phrase
> search, e.g. "foo ba*"? at
> http://wiki.apache.org/lucene-**java/LuceneFAQ#Can_I_combine_**
> wildcard_and_phrase_search.2C_**e.g._.22foo_ba.2A.22.3F<http://wiki.apache.org/lucene-java/LuceneFAQ#Can_I_combine_wildcard_and_phrase_search.2C_e.g._.22foo_ba.2A.22.3F>
> which suggests you extend the QueryParser to build a MultiPhraseQuery.
> There's also ComplexPhraseQueryParser which looks interesting.
>
>
> --
> Ian.
>
>
> On Wed, Jul 4, 2012 at 9:51 AM, Ian Lea <ia...@gmail.com> wrote:
>
>> Where exactly are you using these double quoted strings? QueryParser?
>> It would help if you showed a code snippet.
>>
>> Assuming your real data is more complex and the strings you are
>> searching for aren't necessarily at the start of the text, you'll need
>> some mix of wildcard and proximity searching. I don't think that "foo
>> ba*"~n
>> will work but I'm sure you'll be able to do it with a SpanQuery or
>> six. SpanNearQuery lets you specify slop and whether you care if
>> matches are in order or not.
>>
>> See http://www.lucidimagination.**com/blog/2009/07/18/the-**spanquery/<http://www.lucidimagination.com/blog/2009/07/18/the-spanquery/>for
>> info on spans.
>>
>> See also http://wiki.apache.org/lucene-**java/LuceneFAQ#Why_am_I_**
>> getting_no_hits_.2BAC8_**incorrect_hits.3F<http://wiki.apache.org/lucene-java/LuceneFAQ#Why_am_I_getting_no_hits_.2BAC8_incorrect_hits.3F>
>> for good tips on figuring out why things aren't doing what you want.
>>
>> Good luck.
>>
>>
>> --
>> Ian.
>>
>>
>> On Wed, Jul 4, 2012 at 7:11 AM, Hiren Shah <hi...@gmail.com>
>> wrote:
>>
>>> I have used standardAnalyser to save the ANALYZED data in index.
>>>
>>> Data is as below:-
>>>
>>> 1. foo bag test
>>> 2. foo bar test
>>> 3. bar india foo
>>>
>>>
>>> I used
>>> When i search using---------------> foo ba
>>> I get all results when i use ------->(+foo* +ba*)
>>>
>>> 1. I tried using "foo ba" (with double quotes) but no results come as
>>> it searches for exact word
>>> 2. I tried using "foo ba*" (with double quotes) but no results come
>>> as
>>> it searches for exact word
>>> 3. I tried using "foo bar" (with double quotes) Then 2nd result comes
>>> as both words are completed
>>>
>>> What should be done to get options 1 and 2 in results when user types
>>> foo
>>> ba*. I dont want 3rd result but want 1st 2 results.
>>> Please help.
>>>
>>> Thanks
>>> Hiren
>>>
>>
> ------------------------------**------------------------------**---------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.**apache.org<ja...@lucene.apache.org>
> For additional commands, e-mail: java-user-help@lucene.apache.**org<ja...@lucene.apache.org>
>
> ------------------------------**------------------------------**---------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.**apache.org<ja...@lucene.apache.org>
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>
>
Re: Starts with Query - Return like search
Posted by Jack Krupansky <ja...@basetechnology.com>.
You might also consider using the EdgeNGram filter for your documents since
it would index "bar" as both "ba" and "bar" at the same position,
eliminating the need for the use of wildcards. It makes the index bigger,
but eliminates the performance degradation of wildcards. It isn't great for
all situations, but maybe it would work well for your case.
-- Jack Krupansky
-----Original Message-----
From: Ian Lea
Sent: Wednesday, July 04, 2012 4:00 AM
To: java-user@lucene.apache.org
Subject: Re: Starts with Query - Return like search
In fact there is an FAQ entry Can I combine wildcard and phrase
search, e.g. "foo ba*"? at
http://wiki.apache.org/lucene-java/LuceneFAQ#Can_I_combine_wildcard_and_phrase_search.2C_e.g._.22foo_ba.2A.22.3F
which suggests you extend the QueryParser to build a MultiPhraseQuery.
There's also ComplexPhraseQueryParser which looks interesting.
--
Ian.
On Wed, Jul 4, 2012 at 9:51 AM, Ian Lea <ia...@gmail.com> wrote:
> Where exactly are you using these double quoted strings? QueryParser?
> It would help if you showed a code snippet.
>
> Assuming your real data is more complex and the strings you are
> searching for aren't necessarily at the start of the text, you'll need
> some mix of wildcard and proximity searching. I don't think that "foo
> ba*"~n
> will work but I'm sure you'll be able to do it with a SpanQuery or
> six. SpanNearQuery lets you specify slop and whether you care if
> matches are in order or not.
>
> See http://www.lucidimagination.com/blog/2009/07/18/the-spanquery/ for
> info on spans.
>
> See also
> http://wiki.apache.org/lucene-java/LuceneFAQ#Why_am_I_getting_no_hits_.2BAC8_incorrect_hits.3F
> for good tips on figuring out why things aren't doing what you want.
>
> Good luck.
>
>
> --
> Ian.
>
>
> On Wed, Jul 4, 2012 at 7:11 AM, Hiren Shah <hi...@gmail.com> wrote:
>> I have used standardAnalyser to save the ANALYZED data in index.
>>
>> Data is as below:-
>>
>> 1. foo bag test
>> 2. foo bar test
>> 3. bar india foo
>>
>>
>> I used
>> When i search using---------------> foo ba
>> I get all results when i use ------->(+foo* +ba*)
>>
>> 1. I tried using "foo ba" (with double quotes) but no results come as
>> it searches for exact word
>> 2. I tried using "foo ba*" (with double quotes) but no results come
>> as
>> it searches for exact word
>> 3. I tried using "foo bar" (with double quotes) Then 2nd result comes
>> as both words are completed
>>
>> What should be done to get options 1 and 2 in results when user types
>> foo
>> ba*. I dont want 3rd result but want 1st 2 results.
>> Please help.
>>
>> Thanks
>> Hiren
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Re: Starts with Query - Return like search
Posted by Ian Lea <ia...@gmail.com>.
In fact there is an FAQ entry Can I combine wildcard and phrase
search, e.g. "foo ba*"? at
http://wiki.apache.org/lucene-java/LuceneFAQ#Can_I_combine_wildcard_and_phrase_search.2C_e.g._.22foo_ba.2A.22.3F
which suggests you extend the QueryParser to build a MultiPhraseQuery.
There's also ComplexPhraseQueryParser which looks interesting.
--
Ian.
On Wed, Jul 4, 2012 at 9:51 AM, Ian Lea <ia...@gmail.com> wrote:
> Where exactly are you using these double quoted strings? QueryParser?
> It would help if you showed a code snippet.
>
> Assuming your real data is more complex and the strings you are
> searching for aren't necessarily at the start of the text, you'll need
> some mix of wildcard and proximity searching. I don't think that "foo
> ba*"~n
> will work but I'm sure you'll be able to do it with a SpanQuery or
> six. SpanNearQuery lets you specify slop and whether you care if
> matches are in order or not.
>
> See http://www.lucidimagination.com/blog/2009/07/18/the-spanquery/ for
> info on spans.
>
> See also http://wiki.apache.org/lucene-java/LuceneFAQ#Why_am_I_getting_no_hits_.2BAC8_incorrect_hits.3F
> for good tips on figuring out why things aren't doing what you want.
>
> Good luck.
>
>
> --
> Ian.
>
>
> On Wed, Jul 4, 2012 at 7:11 AM, Hiren Shah <hi...@gmail.com> wrote:
>> I have used standardAnalyser to save the ANALYZED data in index.
>>
>> Data is as below:-
>>
>> 1. foo bag test
>> 2. foo bar test
>> 3. bar india foo
>>
>>
>> I used
>> When i search using---------------> foo ba
>> I get all results when i use ------->(+foo* +ba*)
>>
>> 1. I tried using "foo ba" (with double quotes) but no results come as
>> it searches for exact word
>> 2. I tried using "foo ba*" (with double quotes) but no results come as
>> it searches for exact word
>> 3. I tried using "foo bar" (with double quotes) Then 2nd result comes
>> as both words are completed
>>
>> What should be done to get options 1 and 2 in results when user types foo
>> ba*. I dont want 3rd result but want 1st 2 results.
>> Please help.
>>
>> Thanks
>> Hiren
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Re: Starts with Query - Return like search
Posted by Hiren Shah <hi...@gmail.com>.
Please find the code here
package org.lucenesample;
import org.apache.lucene.search.Query;
import org.apache.lucene.*;
import org.apache.lucene.analysis.*;
import org.apache.lucene.analysis.standard.*;
import org.apache.lucene.analysis.standard.std31.*;
import org.apache.lucene.analysis.tokenattributes.*;
import org.apache.lucene.collation.*;
import org.apache.lucene.document.*;
import org.apache.lucene.document.Field.Index;
import org.apache.lucene.document.Field.Store;
import org.apache.lucene.index.*;
import org.apache.lucene.index.IndexWriter.MaxFieldLength;
import org.apache.lucene.messages.*;
import org.apache.lucene.queryParser.*;
import org.apache.lucene.search.*;
import org.apache.lucene.search.function.*;
import org.apache.lucene.search.payloads.*;
import org.apache.lucene.search.spans.*;
import org.apache.lucene.store.*;
import org.apache.lucene.util.*;
import org.apache.lucene.util.fst.*;
import org.apache.lucene.util.packed.*;
import java.io.File;
import java.sql.*;
import java.util.HashMap;
public class ExactPhrasesearchUsingStandardAnalyser {
/**
* @param args
*/
public static void main(String[] args) throws Exception {
Directory directory = new RAMDirectory();
StandardAnalyzer analyzer = new StandardAnalyzer(Version.LUCENE_35);
MaxFieldLength mlf = MaxFieldLength.UNLIMITED;
IndexWriter writer = new IndexWriter(directory, analyzer, true,
mlf);
writer.addDocument(createDocument1("1", "foo bar baz blue"));
writer.addDocument(createDocument1("2", "red green blue"));
writer.addDocument(createDocument1("3", "test panda foo & bar
testt"));
writer.addDocument(createDocument1("4", " bar test test foo in
panda red blue "));
writer.addDocument(createDocument1("4", "test"));
writer.close();
IndexSearcher searcher = new IndexSearcher(directory);
PhraseQuery query = new PhraseQuery();
QueryParser qp2 = new QueryParser(Version.LUCENE_35, "contents",
analyzer);
//qp.setDefaultOperator(QueryParser.Operator.AND);
Query queryx2 =qp2.parse("test foo in panda re*");//contains query
Query queryx23 =qp2.parse("+red +green +blu*" );//exact phrase match
query.Make last word as followed by star
Query queryx234 =qp2.parse("(+red +green +blu*)& (\"red* green\") " );
/*String term = "new york";
// id and location are the fields in which i want to search the
"term"
MultiFieldQueryParser queryParser = new MultiFieldQueryParser(
Version.LUCENE_35,
{ "contents"},
new KeywordAnalyzer());
Query query = queryParser.parse(term);
System.out.println(query.toString());*/
QueryParser qp = new QueryParser(Version.LUCENE_35, "contents",
analyzer);
//qp.setDefaultOperator(QueryParser.Operator.AND);
Query queryx =qp.parse("\"air quality\"~10");
System.out.println("******************Searching Code
starts******************");
TopDocs topDocs = searcher.search(queryx2, 10);
for (ScoreDoc scoreDoc : topDocs.scoreDocs) {
Document doc = searcher.doc(scoreDoc.doc);
System.out.println(doc+"testtttttttt");
}
}
private static Document createDocument1(String id, String content) {
Document doc = new Document();
doc.add(new Field("id", id, Store.YES, Index.NOT_ANALYZED));
doc.add(new Field("contents", content, Store.YES, Index.ANALYZED,
Field.
TermVector.WITH_POSITIONS_OFFSETS));
System.out.println(content);
return doc;
}
}
Also please refer the below post.
http://stackoverflow.com/questions/10828825/incremental-search-using-lucene
On Wed, Jul 4, 2012 at 2:21 PM, Ian Lea <ia...@gmail.com> wrote:
> Where exactly are you using these double quoted strings? QueryParser?
> It would help if you showed a code snippet.
>
> Assuming your real data is more complex and the strings you are
> searching for aren't necessarily at the start of the text, you'll need
> some mix of wildcard and proximity searching. I don't think that "foo
> ba*"~n
> will work but I'm sure you'll be able to do it with a SpanQuery or
> six. SpanNearQuery lets you specify slop and whether you care if
> matches are in order or not.
>
> See http://www.lucidimagination.com/blog/2009/07/18/the-spanquery/ for
> info on spans.
>
> See also
> http://wiki.apache.org/lucene-java/LuceneFAQ#Why_am_I_getting_no_hits_.2BAC8_incorrect_hits.3F
> for good tips on figuring out why things aren't doing what you want.
>
> Good luck.
>
>
> --
> Ian.
>
>
> On Wed, Jul 4, 2012 at 7:11 AM, Hiren Shah <hi...@gmail.com> wrote:
> > I have used standardAnalyser to save the ANALYZED data in index.
> >
> > Data is as below:-
> >
> > 1. foo bag test
> > 2. foo bar test
> > 3. bar india foo
> >
> >
> > I used
> > When i search using---------------> foo ba
> > I get all results when i use ------->(+foo* +ba*)
> >
> > 1. I tried using "foo ba" (with double quotes) but no results come as
> > it searches for exact word
> > 2. I tried using "foo ba*" (with double quotes) but no results come
> as
> > it searches for exact word
> > 3. I tried using "foo bar" (with double quotes) Then 2nd result comes
> > as both words are completed
> >
> > What should be done to get options 1 and 2 in results when user types
> foo
> > ba*. I dont want 3rd result but want 1st 2 results.
> > Please help.
> >
> > Thanks
> > Hiren
>
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>
>
Re: Starts with Query - Return like search
Posted by Ian Lea <ia...@gmail.com>.
Where exactly are you using these double quoted strings? QueryParser?
It would help if you showed a code snippet.
Assuming your real data is more complex and the strings you are
searching for aren't necessarily at the start of the text, you'll need
some mix of wildcard and proximity searching. I don't think that "foo
ba*"~n
will work but I'm sure you'll be able to do it with a SpanQuery or
six. SpanNearQuery lets you specify slop and whether you care if
matches are in order or not.
See http://www.lucidimagination.com/blog/2009/07/18/the-spanquery/ for
info on spans.
See also http://wiki.apache.org/lucene-java/LuceneFAQ#Why_am_I_getting_no_hits_.2BAC8_incorrect_hits.3F
for good tips on figuring out why things aren't doing what you want.
Good luck.
--
Ian.
On Wed, Jul 4, 2012 at 7:11 AM, Hiren Shah <hi...@gmail.com> wrote:
> I have used standardAnalyser to save the ANALYZED data in index.
>
> Data is as below:-
>
> 1. foo bag test
> 2. foo bar test
> 3. bar india foo
>
>
> I used
> When i search using---------------> foo ba
> I get all results when i use ------->(+foo* +ba*)
>
> 1. I tried using "foo ba" (with double quotes) but no results come as
> it searches for exact word
> 2. I tried using "foo ba*" (with double quotes) but no results come as
> it searches for exact word
> 3. I tried using "foo bar" (with double quotes) Then 2nd result comes
> as both words are completed
>
> What should be done to get options 1 and 2 in results when user types foo
> ba*. I dont want 3rd result but want 1st 2 results.
> Please help.
>
> Thanks
> Hiren
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