Re: How to tell Solr to return all fields including empty fields?
One would think that a JSON output handler in Solr/Lucene would create a: fieldname: null for missing fields. Is it possible to set that as a parameter to a json-requested output? In PHP, NULL and missing are ALMOST the exact same thing. In databases, they actually are, in my limited experience. Dennis Gearon Signature Warning EARTH has a Right To Life, otherwise we all die. Read 'Hot, Flat, and Crowded' Laugh at http://www.yert.com/film.php --- On Sat, 10/2/10, Khai Doan khaitd...@gmail.com wrote: From: Khai Doan khaitd...@gmail.com Subject: Re: How to tell Solr to return all fields including empty fields? To: solr-user@lucene.apache.org Date: Saturday, October 2, 2010, 10:36 PM Thanks for replying. I need to have the empty fields because if the field is not there, the Java library ( http://www.json.org/javadoc/org/json/JSONObject.html) that I use to parse the result will throw an exception. Quite inconvenient. Thanks, Khai On Fri, Oct 1, 2010 at 6:45 PM, Erick Erickson erickerick...@gmail.comwrote: Nope. If a field is empty, it's just not in the document. You could index an empty value (some unique value for empty) if you really need this. But a more interesting question is why you need this. What is it about returning an empty field that's important? Couldn't you detect this through the absence of the field? Best Erick On Fri, Oct 1, 2010 at 3:44 PM, Khai Doan khaitd...@gmail.com wrote: Hello everyone, Right now, I am using fl=*,score to get all fields from Solr. However empty fields are not returned. Is there a way for me to tell Solr to return all fields including empty fields? Thanks, Khai
Re: How to tell Solr to return all fields including empty fields?
Thanks for replying. I need to have the empty fields because if the field is not there, the Java library ( http://www.json.org/javadoc/org/json/JSONObject.html) that I use to parse the result will throw an exception. Quite inconvenient. Thanks, Khai On Fri, Oct 1, 2010 at 6:45 PM, Erick Erickson erickerick...@gmail.comwrote: Nope. If a field is empty, it's just not in the document. You could index an empty value (some unique value for empty) if you really need this. But a more interesting question is why you need this. What is it about returning an empty field that's important? Couldn't you detect this through the absence of the field? Best Erick On Fri, Oct 1, 2010 at 3:44 PM, Khai Doan khaitd...@gmail.com wrote: Hello everyone, Right now, I am using fl=*,score to get all fields from Solr. However empty fields are not returned. Is there a way for me to tell Solr to return all fields including empty fields? Thanks, Khai
How to tell Solr to return all fields including empty fields?
Hello everyone, Right now, I am using fl=*,score to get all fields from Solr. However empty fields are not returned. Is there a way for me to tell Solr to return all fields including empty fields? Thanks, Khai
Re: How to tell Solr to return all fields including empty fields?
Nope. If a field is empty, it's just not in the document. You could index an empty value (some unique value for empty) if you really need this. But a more interesting question is why you need this. What is it about returning an empty field that's important? Couldn't you detect this through the absence of the field? Best Erick On Fri, Oct 1, 2010 at 3:44 PM, Khai Doan khaitd...@gmail.com wrote: Hello everyone, Right now, I am using fl=*,score to get all fields from Solr. However empty fields are not returned. Is there a way for me to tell Solr to return all fields including empty fields? Thanks, Khai
