There are more advanced ways to embed hierarchy in records. This describes them:
http://wiki.apache.org/solr/HierarchicalFaceting (This is a great page, never noticed it.) On Fri, Aug 24, 2012 at 8:12 PM, Sheldon P <sporc...@gmail.com> wrote: > Thanks for the prompt reply Jack. Could you point me towards any code > examples of that technique? > > > On Fri, Aug 24, 2012 at 4:31 PM, Jack Krupansky <j...@basetechnology.com> > wrote: >> The general rule in Solr is simple: denormalize your data. >> >> If you have some maps (or tables) and a set of keys (columns) for each map >> (table), define fields with names like <map-name>_<key-name>, such as >> "map1_name", "map2_name", "map1_field1", "map2_field1". Solr has dynamic >> fields, so you can define "<map-name>_*" to have a desired type - if all the >> keys have the same type. >> >> -- Jack Krupansky >> >> -----Original Message----- From: Sheldon P >> Sent: Friday, August 24, 2012 3:33 PM >> To: solr-user@lucene.apache.org >> Subject: How do I represent a group of customer key/value pairs >> >> >> I've just started to learn Solr and I have a question about modeling data >> in the schema.xml. >> >> I'm using SolrJ to interact with my Solr server. It's easy for me to store >> key/value paris where the key is known. For example, if I have: >> >> title="Some book title" >> author="The authors name" >> >> >> I can represent that data in the schema.xml file like this: >> >> <field name="title" type="text_general" indexed="true" >> stored="true"/> >> <field name="author" type="text_general" indexed="true" >> stored="true"/> >> >> I also have data that is stored as a Java HashMap, where the keys are >> unknown: >> >> Map<String, String> map = new HashMap<String, String>(); >> map.put("some unknown key", "some unknown data"); >> map.put("another unknown key", "more unknown data"); >> >> >> I would prefer to store that data in Solr without losing its hierarchy. >> For example: >> >> <field name="map" type="maptype" indexed="true" stored="true"/> >> >> <field name="some unknown key" type="text_general" indexed="true" >> stored="true"/> >> >> <field name="another unknown key" type="text_general" indexed="true" >> stored="true"/> >> >> </field> >> >> >> Then I could search for "some unknown key", and receive "some unknown data". >> >> Is this possible in Solr? What is the best way to store this kind of data? -- Lance Norskog goks...@gmail.com
