Re: how to introduce a evaluator for comparing not only document with fixed values

2016-08-03 Thread Cristian Lorenzetto
i m thinkking another solution : it could also possible building additional info in relation to the query to use :). 2016-08-03 19:27 GMT+02:00 Cristian Lorenzetto < cristian.lorenze...@gmail.com>: > yes internally lucene could make a lot of things for reaching target: > - it could add info map

Re: how to introduce a evaluator for comparing not only document with fixed values

2016-08-03 Thread Cristian Lorenzetto
yes internally lucene could make a lot of things for reaching target: - it could add info map {-1,0,1,undefined} 2 bit for every combination of concrete fields. With additional short array it could make possible it. for ordinable comparation. i think it is not so difficult to do for lucene develo

Re: how to introduce a evaluator for comparing not only document with fixed values

2016-08-03 Thread Adrien Grand
Lucene cannot run such a query without doing a linear scan over all documents in order to compare the values of both fields, this is why we do not have a query for it. The recommended approach in such cases is to index a third field where the difference between value1 and value2 is computed at inde

how to introduce a evaluator for comparing not only document with fixed values

2016-08-03 Thread Cristian Lorenzetto
hi i need a help. I want create a lucene query parser for adding evaluation of expression in lucene value1:>= value2 where value1 and value2 are 2 field names in the document. how to do it? for me it is sufficient also to work programatically creating a new Query Object making it