Is it possible to explicitly set a column value to null?
I see that if insert statement does not include a specific column, that column
comes up as null (assuming we are creating a record with new unique key).
But if we want to update a record, how we set it to null?
Another situation is when I use prepared cql3 statement (in Java) and send
parameters when I execute it. If I want to leave some column unassigned, I need
a special statement without that column.
What I would like is, prepare one statement including all columns, and then be
able to set some of them to null. I tried to set corresponding ByteBuffer
parameter to null, obviously got an exception.
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