I am facing exactly the same issue right now. There is no way to check if a particular field is not present in tuple or is null.
Was there any development related to this issue? Is there a work around? In my case, I have an incoming stream of tuples and I want to filter out all the tuples which do not have certain field set, so I was thinking of "having" function like this. having( seed_expr, not(eq(fieldA,null) ) this would result in stream of tuples which definitely have fieldA set and I can do some operation on it. Problem is that "eq" evaluator fails with null value. Is there a related JIRA that I can track? @Joel is there any way/ workaround to achieve this? i.e. to know whether certain field is null or not? Thanks and Regards, Pratik -- Sent from: https://lucene.472066.n3.nabble.com/Solr-User-f472068.html
