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Posted to java-user@lucene.apache.org by "haiwei.xie-soulinfo" <ha...@soulinfo.com> on 2014/10/11 05:09:32 UTC
Search "_all" field with a term
hi all,
Does lucene support all fields with a term? Can I use "_all" intead "fieldname"?
As Lucene's APIs example code:
...
// Parse a simple query that searches for "text":
QueryParser parser = new QueryParser(Version.LUCENE_CURRENT, "fieldname", analyzer);
Query query = parser.parse("text");
...
Thanks
--
haiwei
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RE: Search "_all" field with a term
Posted by Uwe Schindler <uw...@thetaphi.de>.
Hi,
> 'Internally this is indexing every field a second time into the "_all" field.'
> This sentence mean second indexing has total different analyzer and
> indexing compared with my first indexing?
Exactly.
> So I need rewrite the second
> process to fix my problem?
In Elasticsearch you can define the analyzer for the "_all" field. It is just configureable through the mapping like any other field.
But you should ask those questions on the Elasticsearch mailing list.
> > Hi,
> >
> > by default there is no "_all" field. E.g., Elasticsearch adds this special field
> depending on your index mapping at the time of indexing the data. Internally
> this is indexing every field a second time into the "_all" field.
> >
> > With Lucene you have to do this on yourself. An alternative would be to
> use another query parser (like the SimpleQueryParser, see
> http://goo.gl/4blGsp) that allows to expand the query to search on multiple
> fields with different weight factors.
> >
> > Uwe
> >
> > -----
> > Uwe Schindler
> > H.-H.-Meier-Allee 63, D-28213 Bremen
> > http://www.thetaphi.de
> > eMail: uwe@thetaphi.de
> >
> >
> > > -----Original Message-----
> > > From: haiwei.xie-soulinfo [mailto:haiwei.xie@soulinfo.com]
> > > Sent: Saturday, October 11, 2014 5:10 AM
> > > To: java-user@lucene.apache.org
> > > Subject: Search "_all" field with a term
> > >
> > > hi all,
> > >
> > > Does lucene support all fields with a term? Can I use "_all"
> > > intead "fieldname"?
> > >
> > > As Lucene's APIs example code:
> > > ...
> > > // Parse a simple query that searches for "text":
> > > QueryParser parser = new QueryParser(Version.LUCENE_CURRENT,
> > > "fieldname", analyzer);
> > > Query query = parser.parse("text");
> > > ...
> > >
> > > Thanks
> > > --
> > > haiwei
> > >
> > > --------------------------------------------------------------------
> > > - To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > > For additional commands, e-mail: java-user-help@lucene.apache.org
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > For additional commands, e-mail: java-user-help@lucene.apache.org
> >
>
>
> --
> haiwei
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> For additional commands, e-mail: java-user-help@lucene.apache.org
---------------------------------------------------------------------
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Re: Search "_all" field with a term
Posted by "haiwei.xie-soulinfo" <ha...@soulinfo.com>.
> You should ask this on the elasticsearch mailing list.
>
> BTW, look at elasticsearch copy_to feature. Better than _all field.
>
> My 2 cents.
I will try it. thanks.
>
>
> David ;-)
> Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs
>
> > Le 11 oct. 2014 à 11:31, "haiwei.xie-soulinfo" <ha...@soulinfo.com> a écrit :
> >
> > Hi,
> >
> > Thanks for your advise, SimpleQueryParser api is not enough in my case.
> > Actually, I want to index data from database, there are so many fields, I have
> > tested "_all" parameter in ElasticSearch system, but the result of '_all'
> > and 'fieldname' are different for chinese term.
> >
> > 'Internally this is indexing every field a second time into the "_all" field.'
> > This sentence mean second indexing has total different analyzer and indexing compared
> > with my first indexing? So I need rewrite the second process to fix my problem?
> >
> > Thanks.
> >
> > Haiwei
> >
> >
> >> Hi,
> >>
> >> by default there is no "_all" field. E.g., Elasticsearch adds this special field depending on your index mapping at the time of indexing the data. Internally this is indexing every field a second time into the "_all" field.
> >>
> >> With Lucene you have to do this on yourself. An alternative would be to use another query parser (like the SimpleQueryParser, see http://goo.gl/4blGsp) that allows to expand the query to search on multiple fields with different weight factors.
> >>
> >> Uwe
> >>
> >> -----
> >> Uwe Schindler
> >> H.-H.-Meier-Allee 63, D-28213 Bremen
> >> http://www.thetaphi.de
> >> eMail: uwe@thetaphi.de
> >>
> >>
> >>> -----Original Message-----
> >>> From: haiwei.xie-soulinfo [mailto:haiwei.xie@soulinfo.com]
> >>> Sent: Saturday, October 11, 2014 5:10 AM
> >>> To: java-user@lucene.apache.org
> >>> Subject: Search "_all" field with a term
> >>>
> >>> hi all,
> >>>
> >>> Does lucene support all fields with a term? Can I use "_all" intead
> >>> "fieldname"?
> >>>
> >>> As Lucene's APIs example code:
> >>> ...
> >>> // Parse a simple query that searches for "text":
> >>> QueryParser parser = new QueryParser(Version.LUCENE_CURRENT,
> >>> "fieldname", analyzer);
> >>> Query query = parser.parse("text");
> >>> ...
> >>>
> >>> Thanks
> >>> --
> >>> haiwei
> >>>
> >>> ---------------------------------------------------------------------
> >>> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> >>> For additional commands, e-mail: java-user-help@lucene.apache.org
> >>
> >>
> >> ---------------------------------------------------------------------
> >> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> >> For additional commands, e-mail: java-user-help@lucene.apache.org
> >
> >
> > --
> > haiwei
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > For additional commands, e-mail: java-user-help@lucene.apache.org
> >
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> For additional commands, e-mail: java-user-help@lucene.apache.org
>
--
haiwei
---------------------------------------------------------------------
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Re: Search "_all" field with a term
Posted by David Pilato <da...@pilato.fr>.
You should ask this on the elasticsearch mailing list.
BTW, look at elasticsearch copy_to feature. Better than _all field.
My 2 cents.
--
David ;-)
Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs
> Le 11 oct. 2014 à 11:31, "haiwei.xie-soulinfo" <ha...@soulinfo.com> a écrit :
>
> Hi,
>
> Thanks for your advise, SimpleQueryParser api is not enough in my case.
> Actually, I want to index data from database, there are so many fields, I have
> tested "_all" parameter in ElasticSearch system, but the result of '_all'
> and 'fieldname' are different for chinese term.
>
> 'Internally this is indexing every field a second time into the "_all" field.'
> This sentence mean second indexing has total different analyzer and indexing compared
> with my first indexing? So I need rewrite the second process to fix my problem?
>
> Thanks.
>
> Haiwei
>
>
>> Hi,
>>
>> by default there is no "_all" field. E.g., Elasticsearch adds this special field depending on your index mapping at the time of indexing the data. Internally this is indexing every field a second time into the "_all" field.
>>
>> With Lucene you have to do this on yourself. An alternative would be to use another query parser (like the SimpleQueryParser, see http://goo.gl/4blGsp) that allows to expand the query to search on multiple fields with different weight factors.
>>
>> Uwe
>>
>> -----
>> Uwe Schindler
>> H.-H.-Meier-Allee 63, D-28213 Bremen
>> http://www.thetaphi.de
>> eMail: uwe@thetaphi.de
>>
>>
>>> -----Original Message-----
>>> From: haiwei.xie-soulinfo [mailto:haiwei.xie@soulinfo.com]
>>> Sent: Saturday, October 11, 2014 5:10 AM
>>> To: java-user@lucene.apache.org
>>> Subject: Search "_all" field with a term
>>>
>>> hi all,
>>>
>>> Does lucene support all fields with a term? Can I use "_all" intead
>>> "fieldname"?
>>>
>>> As Lucene's APIs example code:
>>> ...
>>> // Parse a simple query that searches for "text":
>>> QueryParser parser = new QueryParser(Version.LUCENE_CURRENT,
>>> "fieldname", analyzer);
>>> Query query = parser.parse("text");
>>> ...
>>>
>>> Thanks
>>> --
>>> haiwei
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
>>> For additional commands, e-mail: java-user-help@lucene.apache.org
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
>> For additional commands, e-mail: java-user-help@lucene.apache.org
>
>
> --
> haiwei
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> For additional commands, e-mail: java-user-help@lucene.apache.org
>
---------------------------------------------------------------------
To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
For additional commands, e-mail: java-user-help@lucene.apache.org
Re: Search "_all" field with a term
Posted by "haiwei.xie-soulinfo" <ha...@soulinfo.com>.
Hi,
Thanks for your advise, SimpleQueryParser api is not enough in my case.
Actually, I want to index data from database, there are so many fields, I have
tested "_all" parameter in ElasticSearch system, but the result of '_all'
and 'fieldname' are different for chinese term.
'Internally this is indexing every field a second time into the "_all" field.'
This sentence mean second indexing has total different analyzer and indexing compared
with my first indexing? So I need rewrite the second process to fix my problem?
Thanks.
Haiwei
> Hi,
>
> by default there is no "_all" field. E.g., Elasticsearch adds this special field depending on your index mapping at the time of indexing the data. Internally this is indexing every field a second time into the "_all" field.
>
> With Lucene you have to do this on yourself. An alternative would be to use another query parser (like the SimpleQueryParser, see http://goo.gl/4blGsp) that allows to expand the query to search on multiple fields with different weight factors.
>
> Uwe
>
> -----
> Uwe Schindler
> H.-H.-Meier-Allee 63, D-28213 Bremen
> http://www.thetaphi.de
> eMail: uwe@thetaphi.de
>
>
> > -----Original Message-----
> > From: haiwei.xie-soulinfo [mailto:haiwei.xie@soulinfo.com]
> > Sent: Saturday, October 11, 2014 5:10 AM
> > To: java-user@lucene.apache.org
> > Subject: Search "_all" field with a term
> >
> > hi all,
> >
> > Does lucene support all fields with a term? Can I use "_all" intead
> > "fieldname"?
> >
> > As Lucene's APIs example code:
> > ...
> > // Parse a simple query that searches for "text":
> > QueryParser parser = new QueryParser(Version.LUCENE_CURRENT,
> > "fieldname", analyzer);
> > Query query = parser.parse("text");
> > ...
> >
> > Thanks
> > --
> > haiwei
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > For additional commands, e-mail: java-user-help@lucene.apache.org
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> For additional commands, e-mail: java-user-help@lucene.apache.org
>
--
haiwei
---------------------------------------------------------------------
To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
For additional commands, e-mail: java-user-help@lucene.apache.org
RE: Search "_all" field with a term
Posted by Uwe Schindler <uw...@thetaphi.de>.
Hi,
by default there is no "_all" field. E.g., Elasticsearch adds this special field depending on your index mapping at the time of indexing the data. Internally this is indexing every field a second time into the "_all" field.
With Lucene you have to do this on yourself. An alternative would be to use another query parser (like the SimpleQueryParser, see http://goo.gl/4blGsp) that allows to expand the query to search on multiple fields with different weight factors.
Uwe
-----
Uwe Schindler
H.-H.-Meier-Allee 63, D-28213 Bremen
http://www.thetaphi.de
eMail: uwe@thetaphi.de
> -----Original Message-----
> From: haiwei.xie-soulinfo [mailto:haiwei.xie@soulinfo.com]
> Sent: Saturday, October 11, 2014 5:10 AM
> To: java-user@lucene.apache.org
> Subject: Search "_all" field with a term
>
> hi all,
>
> Does lucene support all fields with a term? Can I use "_all" intead
> "fieldname"?
>
> As Lucene's APIs example code:
> ...
> // Parse a simple query that searches for "text":
> QueryParser parser = new QueryParser(Version.LUCENE_CURRENT,
> "fieldname", analyzer);
> Query query = parser.parse("text");
> ...
>
> Thanks
> --
> haiwei
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> For additional commands, e-mail: java-user-help@lucene.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
For additional commands, e-mail: java-user-help@lucene.apache.org