On 4/11/2014 12:42 AM, Dmitry Kan wrote: > Thanks! So solr 4.7 does not seem to respect the luceneMatchVersion on the > binary (index) level. Or perhaps, I misunderstand the meaning of the > luceneMatchVersion.
luceneMatchVersion does not dictate the index format. It is a way to signal things like analysis components that they should emulate behavior (sometimes buggy) found in an earlier version. Not all analysis components will operate differently when this config is used. There is probably not a central repository of how the version affects Solr/Lucene behavior. > I wonder whether there is any possibility of defining the version of the > codec in solr config/schema. I don't think Solr exposes any way to define an entire codec. You can change things individually, like the postings format and docValues format on a field, but there's no way (that I know of) to define an entire codec. The overall index format is not something you can specify. I think it could be possible to come up with some XML syntax for describing a complete codec and then write code to parse it and build the codec ... but because my understanding of how all the Lucene pieces fit together is relatively low, there may be some really good reason that Solr doesn't offer this functionality. Thanks, Shawn
