Adrien, Thank you very much, and in particular:
On Mar 27, 2013, at 4:57 PM, Adrien Grand <[email protected]> wrote: > A codec describes > the formats to use for every index file: postings format, stored > fields format, term vectors format, norms format, etc. whereas a > postings format only describes the format of the terms dictionary and > postings lists. That 1 sentence clarifies things immensely. This was the level of thing that I felt fuzzy on, and once reading it, makes perfect sense. (I'm sure it's explained somewhere and I just managed to miss it) So there's "SimpleText" the posting format, and also "SimpleText" the codec, and they are related, and a deeper coupling than other codec vs. posting combos. And this was also helpful: > Codecs can't be chained. Some postings formats can: for example our > BloomFilter postings format can wrap any other postings format. And looks like this is the direction I want: > ...changing the codec is a little harder: you need to define a CodecFactory > and > configure it in your solrconfig.xml (see > http://wiki.apache.org/solr/SolrConfigXml#codecFactory).
