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From "Gerrit Jansen van Vuuren (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-8753) Support UPDATE IF NOT EXIST OR compare checks in LWT transactions
Date Fri, 06 Feb 2015 11:46:34 GMT
Gerrit Jansen van Vuuren created CASSANDRA-8753:
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             Summary: Support UPDATE IF NOT EXIST OR compare checks in LWT transactions
                 Key: CASSANDRA-8753
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8753
             Project: Cassandra
          Issue Type: Improvement
          Components: Core
            Reporter: Gerrit Jansen van Vuuren


I've got a column that I want to update e.g  min = x IF min > x
but if there is no value for min e.g min == null then the update will never succeed, which
means I need to do a READ then INSERT and then run UPDATES which defies the purpose of using
the LWT for this use case.
is it possible for LWT to support either IF min > x OR min == null ?  or otherwise take
null as equal to zero for numbers ?




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