Try returning all rows where a particular field is null or not null.
select * from ADDRESS where addr1 = null;
or
select * from ADDRESS where addr1 = 'NULL';
addr1 can be a logical or text field.
I tried != null , is null , <> null and isnull(addr1, 'NULL')
but i get
no viable alternative at input '='
or
no index columns present in by-columns clause with "equals' operator"
Using Cassandra 1.1.1 and Java 1.7_05
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