I've noticed that the docs for geo related functions have introduced the notion of ValueSource. That's at the Java level, and in the past I've tried to keep http://wiki.apache.org/solr/FunctionQuery completely away from that.
-Yonik http://www.lucidimagination.com On Thu, Dec 24, 2009 at 7:21 AM, Apache Wiki <wikidi...@apache.org> wrote: > Dear Wiki user, > > You have subscribed to a wiki page or wiki category on "Solr Wiki" for change > notification. > > The "FunctionQuery" page has been changed by GrantIngersoll. > http://wiki.apache.org/solr/FunctionQuery?action=diff&rev1=51&rev2=52 > > -------------------------------------------------- > > > Until [[Solr1.5]], all functions were single valued. Since [[Solr1.5]], it > is now possible to write multivalued functions by overriding the appropriate > !DocValues methods (the ones that take in an array of the appropriate type, > i.e. doubleVal(int doc, double[] vals). This is often useful when working > with [[http://wiki.apache.org/solr/SchemaXml#Poly_Field_Types|Poly Fields]]. > Note, however, that these multivalued functions must be aggregated up into a > single value function, as the !FunctionQuery itself does not support them. > > + See the !MultiValueSource class. > + > See https://issues.apache.org/jira/browse/SOLR-1131 > > + == Multi Valued Function Support == > + > + === toMultiVS === > + <!> Name is subject to change <!> > + Takes in one or more single valued ValueSource instances and creates a > multivalue source. > + > + Signature: toMultiVS(x,y,z) > + > + === Distances === > + > + dist(), hsine() and sqedist() can work with !MultiValueSources > + >
