Hi Uwe
Thanks for the suggestion, I tried to use a BooleanQuery with clause1 =
termquery and clause2 = ConstantScoreQuery(MyNDVFilter), joined by SHOULD. I
also applied the term filter at the top level (as before). Unfortunately it
doesn't work in that the MyNDVFilter still receives null acceptDocs and
therefore has no option but to scan the whole index.
My goal is to slowly transform a particular field from StringField to
BinaryDocValues so that during the transition a doc may hold the value either
in the old location or the new. Therefore a query must be able to say
oldField:"foo" OR newField:"foo"
Where oldField is a StringField and newField is a BinaryDocValues.
I must add that a full reindex all in one go is currently not an option, so the
solution must support this mixed mode.
Any thoughts on how this could be best achieved ..?
Thanks
Chris
Sent from my iPhone
> On 11 Mar 2015, at 19:15, Uwe Schindler <u...@thetaphi.de> wrote:
>
> Hi,
>
> In fact the FilteredQuery(MatchAllDocsQuery,...) with the filter should have
> been rewritten to a ConstantScoreQuery already, but for some unknown reason,
> Mike McCandless removed it in
> https://issues.apache.org/jira/browse/LUCENE-5418
> Because of this it's better to do it like I said before (use
> ConstantScoreQuery).
>
> Uwe
>
> -----
> Uwe Schindler
> H.-H.-Meier-Allee 63, D-28213 Bremen
> http://www.thetaphi.de
> eMail: u...@thetaphi.de
>
>
>> -----Original Message-----
>> From: Uwe Schindler [mailto:u...@thetaphi.de]
>> Sent: Wednesday, March 11, 2015 8:07 PM
>> To: java-user@lucene.apache.org
>> Subject: RE: Filtering question
>>
>> Hi,
>>
>> BooleanQuery:
>> -- Clause 1: TermQuery
>> -- Clause 2: FilteredQuery
>> ----- Branch 1: MatchAllDocsQuery()
>> ----- Branch 2: MyNDVFilter
>>
>>
>> Why does it look like this? Clause 2 should simply be:
>> ConstantScoreQuery(MyNDVFilter) In that case the BooleanQuery will
>> execute more effectively, in case of 2 MUST clauses it will leap-frog.
>>
>> The reason for this behavior is the way how FilteredQuery executes: A filter
>> is seen as cheap, so it is applied down low. If it supports Bits()
---------------------------------------------------------------------
To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org
For additional commands, e-mail: java-user-h...@lucene.apache.org
