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https://issues.apache.org/jira/browse/CASSANDRA-7379?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aleksey Yeschenko resolved CASSANDRA-7379.
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Resolution: Duplicate
Reproduced In: 2.0.8, 2.0.7 (was: 2.0.7, 2.0.8)
This is the expected behavior. See CASSANDRA-6951.
> updating a row with compound key with a null value removes the entire row
> -------------------------------------------------------------------------
>
> Key: CASSANDRA-7379
> URL: https://issues.apache.org/jira/browse/CASSANDRA-7379
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Reporter: Ashot Golovenko
> Assignee: Michael Shuler
> Priority: Critical
>
> create a table
> CREATE TABLE relation (
> u1 bigint,
> u2 bigint,
> mf int,
> PRIMARY KEY (u1, u2));
> insert value:
> UPDATE relation SET mf = 1 WHERE u1 = 1 and u2 = 2;
> SELECT * from relation ;
> u1 | u2 | mf
> ----+----+----
> 1 | 2 | 1
> insert null value:
> UPDATE relation SET mf = null WHERE u1 = 1 and u2 = 2;
> SELECT * from relation ;
> (0 rows) <--- WRONG!
> The INSERT statement however works:
> INSERT INTO relation (u1, u2, mf) VALUES (1, 2, null);
> SELECT * from relation ;
> u1 | u2 | mf
> ----+----+------
> 1 | 2 | null
> (1 rows)
>
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