4 ms·
You can define arbitrary mathematical functions based on document variables stored in memory, and that you can change in real time. You can have as many of thes
by diego 16y ago
You can define arbitrary mathematical functions based on document variables stored in memory, and that you can change in real time. You can have as many of these as you want.
http://indextank.com/documentation/function-definition http://indextank.com/documentation/function-definition
(Feedback on this documentation is more than welcome, it's a work in progress!)
- riffraff 16y agoplease pardon me but I still confused: why can't you do this with the standard lucene? It kind of seems like what solr does with function queries[0]. Is the difference in what the variables are? http://wiki.apache.org/solr/FunctionQuery http://wiki.apache.org/solr/FunctionQuery
- santip 16y agoThe main difference is that you can update the document variables without fragmenting the index. In Lucene you need to reindex the document (i.e. delete it and write a new one). If you update your relevance variables an average of 10 times per document it can get really fragmented with Lucene.
- riffraff 16y agoah, got it. The point is the document fields are updated in place instead of delete+reinsert. Seems interesting.