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Posted to java-user@lucene.apache.org by Sonu Sudhakar <so...@gmail.com> on 2008/06/02 07:19:44 UTC
Re: Boolean Query Issue
Hi,
I have done some more analysis on this issue. I think it is related to
lucene's default operator.
I am getting excat results, when I sets the default operator as 'OR', but
facing problem when setting the default operator as 'AND'.
The following are the lucene QueryParser outputs for both cases.
Query :* TTL:store AND TTL:data OR TTL:variable
*1. When lucene default operator is '*OR'
*QueryParser output using toString method: *
+TTL:store +TTL:data TTL:variable
*2. When lucene default operator is '*AND'
*QueryParser output using toString method:
*+TTL:store TTL:data TTL:variable
*The output of second case is confusing me.
Could anybody please give me an explanation for this behavior?
Thanks,
Sonu
On Thu, May 29, 2008 at 3:49 PM, Sonu Sudhakar <so...@gmail.com> wrote:
> Erick,
>
> Thanks for your reply.
>
> I am working with approximately 1 million documents. They are indexed in 4
> servers. Each document has multiple fields. I am using ParallelMultiSearcher
> for searching purpose.
>
> I tried a few queries in the title(TTL) field.
>
> i started with a simple query without boolean operators.
>
> *1. TTL:data => 3733 results (all matches had "data" in title)*
>
> Then I tried a second one with AND operator.
>
> *2. TTL:data AND TTL:store => 19 results*
>
> I analyzed the results. the results had both "data" and "store" in the
> title.
>
> *I then tried OR operator*
>
> *3. TTL:data AND TTL:store OR TTL:variable*
>
> I got 3,733 results., same as the query TTL:data.
>
> I even tried giving a meaningless query
>
> TTL:data AND TTL:storettttt OR TTL:variablettttt => 3,733 results (The
> results were same as that of TTL:data.)
>
> TTL:data AND TTL:computer OR TTL:device => 3,733 results (this also showed
> the same results as above)
>
> The same thing repeats for other cases too. The queries below also behaved
> the same way.
> i.e. -
>
> 1. TTL:store AND TTL:data OR TTL:variable => 76 results
> 2. TTL:store AND TTL:datatttt OR TTL:variabletttt => 76 results
> 3. TTL:store AND TTL:computer OR TTL:device => 76 results
>
>
> 1. TTL:variable AND TTL:data OR TTL:store => 1,496 results
> 2. TTL:variable AND TTL:datatttt OR TTL:storetttt => 1,496 results
> 3. TTL:variable AND TTL:computer OR TTL:device => 1,496 results
>
> I hope you have a clearer picture of my issue now.
>
> Thanks,
> Sonu
>
>
> On Wed, May 28, 2008 at 7:09 PM, Erick Erickson <er...@gmail.com>
> wrote:
>
>> It's unclear what you *should* expect. How is your data
>> distributed?
>>
>> In other words, how many documents do you have? In this example,
>> for instance,
>> 1. TTL:data AND TTL:store OR TTL:variable => 3,733 results
>> it considered the TTL:data part only.
>>
>> it's perfecily reasonable if every document that had "variable" in the
>> field *also* has "data" and "store" in the field. So your numbers
>> don't give us much to work with.....
>>
>> Remember, though, that Lucene syntax isn't a pure boolean syntax. See
>>
>> http://wiki.apache.org/lucene-java/BooleanQuerySyntax
>>
>> And when in doubt parenthesize <G>...
>>
>> Best
>> Erick
>>
>> On Wed, May 28, 2008 at 7:44 AM, Sonu Sudhakar <so...@gmail.com> wrote:
>>
>> > Hi,
>> >
>> > I have some issue with boolean queries.
>> >
>> > I am using Lucene-core-2.3.1.
>> >
>> > I have done test on boolean query with 3 terms (data, store, variable)
>> in
>> > my
>> > TTL field. The TTL field is indexed and searched using StandardAnalyzer.
>> >
>> > The three terms when searched individually gave the following result
>> >
>> > 1. TTL:data => 3,733 results
>> > 2. TTL:store => 76 results
>> > 3. TTL:variable => 1,496 results
>> >
>> > But found issue when combining these terms with boolean operators.
>> >
>> > e.g.
>> > 1. TTL:data AND TTL:store OR TTL:variable => 3,733 results
>> > it considered the TTL:data part only.
>> >
>> > 2. TTL:store AND TTL:data OR TTL:variable => 76 results
>> > it considered the TTL:store part only.
>> >
>> > 3. TTL:variable AND TTL:data OR TTL:store => 1,496 results
>> > it considered the TTL:variable part only.
>> >
>> > But I am getting correct result when combining terms with 'AND'
>> operator. I
>> > think the issue is with 'OR' operator.
>> >
>> >
>> > Could anybody give an explanation for this behavior of lucene?
>> > Could you give suggestions to rectify this?
>> >
>> > Thanks,
>> > Sonu
>> >
>>
>
>
Re: Boolean Query Issue
Posted by Sonu Sudhakar <so...@gmail.com>.
Sorry, The first mail I forgot to add the line for setting default
QueryParser operator. I have Included that too.
> This is the code I am using for search.
>
> public void doSearch(String userQuery, int stemFlag, int sortFlag, String[]
> sortFileds) throws Exception {
>
> PerFieldAnalyzerWrapper analyzer;
> if (stemFlag == 1) {
> analyzer = new PerFieldAnalyzerWrapper(new
> StemmingAnalyzer());
> } else {
> analyzer = new PerFieldAnalyzerWrapper(new
> StandardAnalyzer());
> }
>
> //Stemming is not applied on country and state fields
> analyzer.addAnalyzer("IS", new StandardAnalyzer());
> analyzer.addAnalyzer("AS", new StandardAnalyzer());
> analyzer.addAnalyzer("IC", new StandardAnalyzer());
> analyzer.addAnalyzer("AC", new StandardAnalyzer());
>
> this.userQuery = userQuery;
>
> // Looking for remote indexes
> RemoteLookup rLookup = new RemoteLookup();
>
> // this will create Searchables object array
> Searchable[] srbl = rLookup.getSearchables();
>
> pmsearcher = new ParallelMultiSearcher(srbl);
>
> QueryParser qp = null;
> qp = new QueryParser("SPEC", analyzer);
> qp.setDefaultOperator(AND_OPERATOR);
>
> query = qp.parse(userQuery);
> //System.out.println(query.toString());
>
> //creates the sort fields
> sort = new SDFSort().getSort(sortFlag, sortFileds);
>
> // Search over multiple indexes
> hits = pmsearcher.search(query, sort);
>
> }
>
> This is not exactly as my code. But added almost all searching parts.
>
> Thanks,
> Sonu
>
>
> On Mon, Jun 2, 2008 at 6:19 PM, Erick Erickson <er...@gmail.com>
> wrote:
>
>> You need to include your code I think. This makes no sense on a quick
>> look, so unless we see some code it'll be hard to know whether
>> we're looking at anything relevant.
>>
>> Best
>> Erick
>>
>> On Mon, Jun 2, 2008 at 1:19 AM, Sonu Sudhakar <so...@gmail.com> wrote:
>>
>> > Hi,
>> >
>> > I have done some more analysis on this issue. I think it is related to
>> > lucene's default operator.
>> > I am getting excat results, when I sets the default operator as 'OR',
>> but
>> > facing problem when setting the default operator as 'AND'.
>> >
>> > The following are the lucene QueryParser outputs for both cases.
>> >
>> > Query :* TTL:store AND TTL:data OR TTL:variable
>> >
>> > *1. When lucene default operator is '*OR'
>> >
>> > *QueryParser output using toString method: *
>> > +TTL:store +TTL:data TTL:variable
>> >
>> >
>> > *2. When lucene default operator is '*AND'
>> >
>> > *QueryParser output using toString method:
>> > *+TTL:store TTL:data TTL:variable
>> >
>> > *The output of second case is confusing me.
>> >
>> > Could anybody please give me an explanation for this behavior?
>> >
>> > Thanks,
>> > Sonu
>> >
>> > On Thu, May 29, 2008 at 3:49 PM, Sonu Sudhakar <so...@gmail.com>
>> wrote:
>> >
>> > > Erick,
>> > >
>> > > Thanks for your reply.
>> > >
>> > > I am working with approximately 1 million documents. They are indexed
>> in
>> > 4
>> > > servers. Each document has multiple fields. I am using
>> > ParallelMultiSearcher
>> > > for searching purpose.
>> > >
>> > > I tried a few queries in the title(TTL) field.
>> > >
>> > > i started with a simple query without boolean operators.
>> > >
>> > > *1. TTL:data => 3733 results (all matches had "data" in title)*
>> > >
>> > > Then I tried a second one with AND operator.
>> > >
>> > > *2. TTL:data AND TTL:store => 19 results*
>> > >
>> > > I analyzed the results. the results had both "data" and "store" in the
>> > > title.
>> > >
>> > > *I then tried OR operator*
>> > >
>> > > *3. TTL:data AND TTL:store OR TTL:variable*
>> > >
>> > > I got 3,733 results., same as the query TTL:data.
>> > >
>> > > I even tried giving a meaningless query
>> > >
>> > > TTL:data AND TTL:storettttt OR TTL:variablettttt => 3,733 results (The
>> > > results were same as that of TTL:data.)
>> > >
>> > > TTL:data AND TTL:computer OR TTL:device => 3,733 results (this also
>> > showed
>> > > the same results as above)
>> > >
>> > > The same thing repeats for other cases too. The queries below also
>> > behaved
>> > > the same way.
>> > > i.e. -
>> > >
>> > > 1. TTL:store AND TTL:data OR TTL:variable => 76 results
>> > > 2. TTL:store AND TTL:datatttt OR TTL:variabletttt => 76 results
>> > > 3. TTL:store AND TTL:computer OR TTL:device => 76 results
>> > >
>> > >
>> > > 1. TTL:variable AND TTL:data OR TTL:store => 1,496 results
>> > > 2. TTL:variable AND TTL:datatttt OR TTL:storetttt => 1,496 results
>> > > 3. TTL:variable AND TTL:computer OR TTL:device => 1,496 results
>> > >
>> > > I hope you have a clearer picture of my issue now.
>> > >
>> > > Thanks,
>> > > Sonu
>> > >
>> > >
>> > > On Wed, May 28, 2008 at 7:09 PM, Erick Erickson <
>> erickerickson@gmail.com
>> > >
>> > > wrote:
>> > >
>> > >> It's unclear what you *should* expect. How is your data
>> > >> distributed?
>> > >>
>> > >> In other words, how many documents do you have? In this example,
>> > >> for instance,
>> > >> 1. TTL:data AND TTL:store OR TTL:variable => 3,733 results
>> > >> it considered the TTL:data part only.
>> > >>
>> > >> it's perfecily reasonable if every document that had "variable" in
>> the
>> > >> field *also* has "data" and "store" in the field. So your numbers
>> > >> don't give us much to work with.....
>> > >>
>> > >> Remember, though, that Lucene syntax isn't a pure boolean syntax. See
>> > >>
>> > >> http://wiki.apache.org/lucene-java/BooleanQuerySyntax
>> > >>
>> > >> And when in doubt parenthesize <G>...
>> > >>
>> > >> Best
>> > >> Erick
>> > >>
>> > >> On Wed, May 28, 2008 at 7:44 AM, Sonu Sudhakar <so...@gmail.com>
>> > wrote:
>> > >>
>> > >> > Hi,
>> > >> >
>> > >> > I have some issue with boolean queries.
>> > >> >
>> > >> > I am using Lucene-core-2.3.1.
>> > >> >
>> > >> > I have done test on boolean query with 3 terms (data, store,
>> variable)
>> > >> in
>> > >> > my
>> > >> > TTL field. The TTL field is indexed and searched using
>> > StandardAnalyzer.
>> > >> >
>> > >> > The three terms when searched individually gave the following
>> result
>> > >> >
>> > >> > 1. TTL:data => 3,733 results
>> > >> > 2. TTL:store => 76 results
>> > >> > 3. TTL:variable => 1,496 results
>> > >> >
>> > >> > But found issue when combining these terms with boolean operators.
>> > >> >
>> > >> > e.g.
>> > >> > 1. TTL:data AND TTL:store OR TTL:variable => 3,733 results
>> > >> > it considered the TTL:data part only.
>> > >> >
>> > >> > 2. TTL:store AND TTL:data OR TTL:variable => 76 results
>> > >> > it considered the TTL:store part only.
>> > >> >
>> > >> > 3. TTL:variable AND TTL:data OR TTL:store => 1,496 results
>> > >> > it considered the TTL:variable part only.
>> > >> >
>> > >> > But I am getting correct result when combining terms with 'AND'
>> > >> operator. I
>> > >> > think the issue is with 'OR' operator.
>> > >> >
>> > >> >
>> > >> > Could anybody give an explanation for this behavior of lucene?
>> > >> > Could you give suggestions to rectify this?
>> > >> >
>> > >> > Thanks,
>> > >> > Sonu
>> > >> >
>> > >>
>> > >
>> > >
>> >
>>
>
>
Re: Boolean Query Issue
Posted by Sonu Sudhakar <so...@gmail.com>.
Hi,
This is the code I am using for search.
public void doSearch(String userQuery, int stemFlag, int sortFlag, String[]
sortFileds) throws Exception {
PerFieldAnalyzerWrapper analyzer;
if (stemFlag == 1) {
analyzer = new PerFieldAnalyzerWrapper(new
StemmingAnalyzer());
} else {
analyzer = new PerFieldAnalyzerWrapper(new
StandardAnalyzer());
}
//Stemming is not applied on country and state fields
analyzer.addAnalyzer("IS", new StandardAnalyzer());
analyzer.addAnalyzer("AS", new StandardAnalyzer());
analyzer.addAnalyzer("IC", new StandardAnalyzer());
analyzer.addAnalyzer("AC", new StandardAnalyzer());
this.userQuery = userQuery;
// Looking for remote indexes
RemoteLookup rLookup = new RemoteLookup();
// this will create Searchables object array
Searchable[] srbl = rLookup.getSearchables();
pmsearcher = new ParallelMultiSearcher(srbl);
QueryParser qp = null;
qp = new QueryParser("SPEC", analyzer);
query = qp.parse(userQuery);
//System.out.println(query.toString());
//creates the sort fields
sort = new SDFSort().getSort(sortFlag, sortFileds);
// Search over multiple indexes
hits = pmsearcher.search(query, sort);
}
This is not exactly as my code. But added almost all searching parts.
Thanks,
Sonu
On Mon, Jun 2, 2008 at 6:19 PM, Erick Erickson <er...@gmail.com>
wrote:
> You need to include your code I think. This makes no sense on a quick
> look, so unless we see some code it'll be hard to know whether
> we're looking at anything relevant.
>
> Best
> Erick
>
> On Mon, Jun 2, 2008 at 1:19 AM, Sonu Sudhakar <so...@gmail.com> wrote:
>
> > Hi,
> >
> > I have done some more analysis on this issue. I think it is related to
> > lucene's default operator.
> > I am getting excat results, when I sets the default operator as 'OR', but
> > facing problem when setting the default operator as 'AND'.
> >
> > The following are the lucene QueryParser outputs for both cases.
> >
> > Query :* TTL:store AND TTL:data OR TTL:variable
> >
> > *1. When lucene default operator is '*OR'
> >
> > *QueryParser output using toString method: *
> > +TTL:store +TTL:data TTL:variable
> >
> >
> > *2. When lucene default operator is '*AND'
> >
> > *QueryParser output using toString method:
> > *+TTL:store TTL:data TTL:variable
> >
> > *The output of second case is confusing me.
> >
> > Could anybody please give me an explanation for this behavior?
> >
> > Thanks,
> > Sonu
> >
> > On Thu, May 29, 2008 at 3:49 PM, Sonu Sudhakar <so...@gmail.com> wrote:
> >
> > > Erick,
> > >
> > > Thanks for your reply.
> > >
> > > I am working with approximately 1 million documents. They are indexed
> in
> > 4
> > > servers. Each document has multiple fields. I am using
> > ParallelMultiSearcher
> > > for searching purpose.
> > >
> > > I tried a few queries in the title(TTL) field.
> > >
> > > i started with a simple query without boolean operators.
> > >
> > > *1. TTL:data => 3733 results (all matches had "data" in title)*
> > >
> > > Then I tried a second one with AND operator.
> > >
> > > *2. TTL:data AND TTL:store => 19 results*
> > >
> > > I analyzed the results. the results had both "data" and "store" in the
> > > title.
> > >
> > > *I then tried OR operator*
> > >
> > > *3. TTL:data AND TTL:store OR TTL:variable*
> > >
> > > I got 3,733 results., same as the query TTL:data.
> > >
> > > I even tried giving a meaningless query
> > >
> > > TTL:data AND TTL:storettttt OR TTL:variablettttt => 3,733 results (The
> > > results were same as that of TTL:data.)
> > >
> > > TTL:data AND TTL:computer OR TTL:device => 3,733 results (this also
> > showed
> > > the same results as above)
> > >
> > > The same thing repeats for other cases too. The queries below also
> > behaved
> > > the same way.
> > > i.e. -
> > >
> > > 1. TTL:store AND TTL:data OR TTL:variable => 76 results
> > > 2. TTL:store AND TTL:datatttt OR TTL:variabletttt => 76 results
> > > 3. TTL:store AND TTL:computer OR TTL:device => 76 results
> > >
> > >
> > > 1. TTL:variable AND TTL:data OR TTL:store => 1,496 results
> > > 2. TTL:variable AND TTL:datatttt OR TTL:storetttt => 1,496 results
> > > 3. TTL:variable AND TTL:computer OR TTL:device => 1,496 results
> > >
> > > I hope you have a clearer picture of my issue now.
> > >
> > > Thanks,
> > > Sonu
> > >
> > >
> > > On Wed, May 28, 2008 at 7:09 PM, Erick Erickson <
> erickerickson@gmail.com
> > >
> > > wrote:
> > >
> > >> It's unclear what you *should* expect. How is your data
> > >> distributed?
> > >>
> > >> In other words, how many documents do you have? In this example,
> > >> for instance,
> > >> 1. TTL:data AND TTL:store OR TTL:variable => 3,733 results
> > >> it considered the TTL:data part only.
> > >>
> > >> it's perfecily reasonable if every document that had "variable" in the
> > >> field *also* has "data" and "store" in the field. So your numbers
> > >> don't give us much to work with.....
> > >>
> > >> Remember, though, that Lucene syntax isn't a pure boolean syntax. See
> > >>
> > >> http://wiki.apache.org/lucene-java/BooleanQuerySyntax
> > >>
> > >> And when in doubt parenthesize <G>...
> > >>
> > >> Best
> > >> Erick
> > >>
> > >> On Wed, May 28, 2008 at 7:44 AM, Sonu Sudhakar <so...@gmail.com>
> > wrote:
> > >>
> > >> > Hi,
> > >> >
> > >> > I have some issue with boolean queries.
> > >> >
> > >> > I am using Lucene-core-2.3.1.
> > >> >
> > >> > I have done test on boolean query with 3 terms (data, store,
> variable)
> > >> in
> > >> > my
> > >> > TTL field. The TTL field is indexed and searched using
> > StandardAnalyzer.
> > >> >
> > >> > The three terms when searched individually gave the following result
> > >> >
> > >> > 1. TTL:data => 3,733 results
> > >> > 2. TTL:store => 76 results
> > >> > 3. TTL:variable => 1,496 results
> > >> >
> > >> > But found issue when combining these terms with boolean operators.
> > >> >
> > >> > e.g.
> > >> > 1. TTL:data AND TTL:store OR TTL:variable => 3,733 results
> > >> > it considered the TTL:data part only.
> > >> >
> > >> > 2. TTL:store AND TTL:data OR TTL:variable => 76 results
> > >> > it considered the TTL:store part only.
> > >> >
> > >> > 3. TTL:variable AND TTL:data OR TTL:store => 1,496 results
> > >> > it considered the TTL:variable part only.
> > >> >
> > >> > But I am getting correct result when combining terms with 'AND'
> > >> operator. I
> > >> > think the issue is with 'OR' operator.
> > >> >
> > >> >
> > >> > Could anybody give an explanation for this behavior of lucene?
> > >> > Could you give suggestions to rectify this?
> > >> >
> > >> > Thanks,
> > >> > Sonu
> > >> >
> > >>
> > >
> > >
> >
>
Re: Boolean Query Issue
Posted by Erick Erickson <er...@gmail.com>.
You need to include your code I think. This makes no sense on a quick
look, so unless we see some code it'll be hard to know whether
we're looking at anything relevant.
Best
Erick
On Mon, Jun 2, 2008 at 1:19 AM, Sonu Sudhakar <so...@gmail.com> wrote:
> Hi,
>
> I have done some more analysis on this issue. I think it is related to
> lucene's default operator.
> I am getting excat results, when I sets the default operator as 'OR', but
> facing problem when setting the default operator as 'AND'.
>
> The following are the lucene QueryParser outputs for both cases.
>
> Query :* TTL:store AND TTL:data OR TTL:variable
>
> *1. When lucene default operator is '*OR'
>
> *QueryParser output using toString method: *
> +TTL:store +TTL:data TTL:variable
>
>
> *2. When lucene default operator is '*AND'
>
> *QueryParser output using toString method:
> *+TTL:store TTL:data TTL:variable
>
> *The output of second case is confusing me.
>
> Could anybody please give me an explanation for this behavior?
>
> Thanks,
> Sonu
>
> On Thu, May 29, 2008 at 3:49 PM, Sonu Sudhakar <so...@gmail.com> wrote:
>
> > Erick,
> >
> > Thanks for your reply.
> >
> > I am working with approximately 1 million documents. They are indexed in
> 4
> > servers. Each document has multiple fields. I am using
> ParallelMultiSearcher
> > for searching purpose.
> >
> > I tried a few queries in the title(TTL) field.
> >
> > i started with a simple query without boolean operators.
> >
> > *1. TTL:data => 3733 results (all matches had "data" in title)*
> >
> > Then I tried a second one with AND operator.
> >
> > *2. TTL:data AND TTL:store => 19 results*
> >
> > I analyzed the results. the results had both "data" and "store" in the
> > title.
> >
> > *I then tried OR operator*
> >
> > *3. TTL:data AND TTL:store OR TTL:variable*
> >
> > I got 3,733 results., same as the query TTL:data.
> >
> > I even tried giving a meaningless query
> >
> > TTL:data AND TTL:storettttt OR TTL:variablettttt => 3,733 results (The
> > results were same as that of TTL:data.)
> >
> > TTL:data AND TTL:computer OR TTL:device => 3,733 results (this also
> showed
> > the same results as above)
> >
> > The same thing repeats for other cases too. The queries below also
> behaved
> > the same way.
> > i.e. -
> >
> > 1. TTL:store AND TTL:data OR TTL:variable => 76 results
> > 2. TTL:store AND TTL:datatttt OR TTL:variabletttt => 76 results
> > 3. TTL:store AND TTL:computer OR TTL:device => 76 results
> >
> >
> > 1. TTL:variable AND TTL:data OR TTL:store => 1,496 results
> > 2. TTL:variable AND TTL:datatttt OR TTL:storetttt => 1,496 results
> > 3. TTL:variable AND TTL:computer OR TTL:device => 1,496 results
> >
> > I hope you have a clearer picture of my issue now.
> >
> > Thanks,
> > Sonu
> >
> >
> > On Wed, May 28, 2008 at 7:09 PM, Erick Erickson <erickerickson@gmail.com
> >
> > wrote:
> >
> >> It's unclear what you *should* expect. How is your data
> >> distributed?
> >>
> >> In other words, how many documents do you have? In this example,
> >> for instance,
> >> 1. TTL:data AND TTL:store OR TTL:variable => 3,733 results
> >> it considered the TTL:data part only.
> >>
> >> it's perfecily reasonable if every document that had "variable" in the
> >> field *also* has "data" and "store" in the field. So your numbers
> >> don't give us much to work with.....
> >>
> >> Remember, though, that Lucene syntax isn't a pure boolean syntax. See
> >>
> >> http://wiki.apache.org/lucene-java/BooleanQuerySyntax
> >>
> >> And when in doubt parenthesize <G>...
> >>
> >> Best
> >> Erick
> >>
> >> On Wed, May 28, 2008 at 7:44 AM, Sonu Sudhakar <so...@gmail.com>
> wrote:
> >>
> >> > Hi,
> >> >
> >> > I have some issue with boolean queries.
> >> >
> >> > I am using Lucene-core-2.3.1.
> >> >
> >> > I have done test on boolean query with 3 terms (data, store, variable)
> >> in
> >> > my
> >> > TTL field. The TTL field is indexed and searched using
> StandardAnalyzer.
> >> >
> >> > The three terms when searched individually gave the following result
> >> >
> >> > 1. TTL:data => 3,733 results
> >> > 2. TTL:store => 76 results
> >> > 3. TTL:variable => 1,496 results
> >> >
> >> > But found issue when combining these terms with boolean operators.
> >> >
> >> > e.g.
> >> > 1. TTL:data AND TTL:store OR TTL:variable => 3,733 results
> >> > it considered the TTL:data part only.
> >> >
> >> > 2. TTL:store AND TTL:data OR TTL:variable => 76 results
> >> > it considered the TTL:store part only.
> >> >
> >> > 3. TTL:variable AND TTL:data OR TTL:store => 1,496 results
> >> > it considered the TTL:variable part only.
> >> >
> >> > But I am getting correct result when combining terms with 'AND'
> >> operator. I
> >> > think the issue is with 'OR' operator.
> >> >
> >> >
> >> > Could anybody give an explanation for this behavior of lucene?
> >> > Could you give suggestions to rectify this?
> >> >
> >> > Thanks,
> >> > Sonu
> >> >
> >>
> >
> >
>