Two things come to mind, neither optimal, but... First, index both author and ID with a delimiter, something like Mary Johnson | 222 and deal with breaking that info up for display when you were displaying the documents. Make sure your analyzer breaks this up appropriately or your searching will be "interesting".
The other would be to do the above in a different field, perhaps stored only so you'd have info that's never displayed to the user but the info would still be available from the doc. I'm pretty sure that order is preserved for mutli-valued fields, but I'm not 100% sure that behavior is guaranteed in the future. Best Erick On Sun, Nov 28, 2010 at 11:30 AM, Andrew Houghton <a...@roarmouse.org> wrote: > I've done my best to search through the archives for this problem, and > found at least one person dealing with a similar issue (with no > responses). I'm sure this has been asked more than once before, but > my search-fu is apparently lacking. > > Essentially, I need to be able to retrieve some metadata (author IDs) > along with the multi-valued fields holding document authors; e.g., I > search in document titles, I get the doc ID, the list of authors, and > *their* IDs, so I can drill down to other papers by these authors. > > A basic sample of the XML data: > > <docs> > <doc> > <id>A001</id> > <title>This is a title</title> > <authors> > <author> > <id>111</id> > <name>John Smith</name> > </author> > <author> > <id>222</id> > <name>Mary Johnson</name> > </author> > </authors> > </doc> > <doc> > <id>A002</id> > <title>And this is another title</title> > <authors> > <author> > <id>222</id> > <name>Mary Johnson</name> > </author> > <author> > <id>333</id> > <name>Alice Pocahontas</name> > </author> > </authors> > </doc> > </docs> > > The only reasonable option I've thought of is to index the authors > twice, with one list of names and one of IDs. It's not clear to me > that SOLR guarantees ordered results of these multi-valued fields, > though. Another option would be to delimit the ID in some manner so > that I could search on and pull the ID from the author fields, but > only display the name. > > A final option, and the one I'm hoping for, is to find that SOLR has > some built-in support for this kind of thing. > > - Andrew >
