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Posted to solr-user@lucene.apache.org by Naomi Dushay <nd...@stanford.edu> on 2010/06/08 22:57:23 UTC
facet data cleanup
Hi folks,
We have a data cleanup effort going on here, and I thought I would
share some information about how to poke around your facet values.
Most of this comes from:
http://wiki.apache.org/solr/SimpleFacetParameters
Exploring Facet Values:
-------
facet field to examine: facet.field=
number of values to return: facet.limit=n
offset into the values: facet.offset=n
sort the facets alphabetically: facet.sort=index
http://your.solr.baseurl/select?rows=0&facet.field=ffldname&facet.sort=index&facet.limit=250&facet.offset=0
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 *]
number of rows: rows=
offset: start=
- Naomi Dushay
Stanford University Libraries
http://searchworks.stanford.edu <-- Blacklight on top of Solr
Re: [Blacklight-development] facet data cleanup
Posted by Erik Hatcher <er...@mac.com>.
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