In the latest version of Lucene you can make a query like of myfield:
[* TO *] to find all documents that have the field.
I've been using Solr so much lately that I'm used to doing the
inverse to find ones that don't have a value for a field also:
-myfield:[* TO *]
But Lucene itself does not support purely negative queries so you can
combine that with a match-all-docs query:
*:* AND -myfield:[* TO *]
Erik
On Aug 24, 2007, at 4:31 AM, Jean-Claude Antonio wrote:
Hello,
Sorry if this question was already asked, but I could not find
subjects related to it.
Is it possible in a query to check if a field exists of not.
something like:
myfield:EXIST
or myfield:ANY VALUE
I had a look at the Query Parser Syntax, and I could not find
anything on the subject.
Thanks in advance.
*Jean-Claude Antonio*
