On Jun 8, 2010, at 1:57 PM, Naomi Dushay wrote:
Missing Facet Values:
-------
to find how many documents are missing values:
facet.missing=true&facet.mincount=really big
http://your.solr.baseurl/select?rows=0&facet.field=ffldname&facet.mincount=10000000&facet.missing=true
to find the documents with missing values:
http://your.solr.baseurl/select?qt=standard&q=+uniquekey:[* TO *] -
ffldname:[* TO *]
You could shorten that query to just q=-field_name:[* TO *]
Solr's "lucene" query parser supports top-level negative clauses.
And I'm assuming every doc has a unique key, so you could use *:*
instead of uniquekey:[* TO *] - but I doubt one is really better than
the other.
Erik
