How to OR null value in Apache Solr query?

Question

The last option to solve this for me was to ask StackOverflow.

I am trying to create a Solr query to get documents that have a specific value on one of its fields OR tha

Answer 1

(-name:[* TO *] AND *:*) OR name:john

Answer 2

try the below query -

q=(name:john OR -(name:[* TO *]))

Answer 3

You can also use it like this.

&fq=name:john OR !name:['' TO *]