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Posted to commits@cassandra.apache.org by "Brandon Williams (JIRA)" <ji...@apache.org> on 2015/02/06 17:50:35 UTC
[jira] [Resolved] (CASSANDRA-8753) Support UPDATE IF NOT EXIST OR
compare checks in LWT transactions
[ https://issues.apache.org/jira/browse/CASSANDRA-8753?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Brandon Williams resolved CASSANDRA-8753.
-----------------------------------------
Resolution: Duplicate
Looks that way.
> 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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