Solr查询以搜索空白字段

Question

I have apache solr search version 1.4

i want to search for all blank field but it's not working

query is :

select?q=-l_occupation_code%3A%5B%2A+TO+%2A%5D&fq=(member_id:332273%20OR%20member_id:7254)&fl=*&start=0&rows=50

using -l_occupation_code:[* TO *] to find all records for field l_occupation_code that contains the blank value.

please help

Answer 1

I would try a slight variation of what you have here:

-l_occupation_code:["" TO *]

there can be some variation from the documentation currently online due to versions and field type.