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Posted to commits@cassandra.apache.org by "Eugene Voytitsky (JIRA)" <ji...@apache.org> on 2014/07/01 11:08:24 UTC

[jira] [Commented] (CASSANDRA-6532) Deleting and re-adding counter causes null count value.

    [ https://issues.apache.org/jira/browse/CASSANDRA-6532?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14048664#comment-14048664 ] 

Eugene Voytitsky commented on CASSANDRA-6532:
---------------------------------------------

Hi Aleksey,

but why with COMPACT STORAGE situation is even worse -- the entire row isn't recreated?
As for me this behaviour difference is very strange.

{noformat}
cqlsh:demo> create table DemoCounter ( pk  text primary key, cnt counter ) WITH COMPACT STORAGE;
cqlsh:demo> update DemoCounter set cnt = cnt + 1 where pk = 'foo';
cqlsh:demo> select * from DemoCounter;

 pk  | cnt
-----+-----
 foo |   1

(1 rows)

cqlsh:demo> delete from DemoCounter where pk = 'foo';
cqlsh:demo> select * from DemoCounter;

(0 rows)

cqlsh:demo> update DemoCounter set cnt = cnt + 1 where pk = 'foo';
cqlsh:demo> select * from DemoCounter;

(0 rows)

cqlsh:demo>
{noformat}

> Deleting and re-adding counter causes null count value.
> -------------------------------------------------------
>
>                 Key: CASSANDRA-6532
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6532
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>         Environment: cqlsh 4.1.0 | Cassandra 2.0.3 | CQL spec 3.1.1 | Thrift protocol 19.38.0
>            Reporter: Gregory Ramsperger
>              Labels: counters
>
> After a specific counter has been deleted, recreating a new counter with the same key causes the value to be permanently null.
> {noformat}
> cqlsh:demo> create table DemoCounter ( pk  text primary key, cnt counter );
> cqlsh:demo> update DemoCounter set cnt = cnt + 1 where pk = 'foo';
> cqlsh:demo> select * from DemoCounter;
>  pk  | cnt
> -----+-----
>  foo |   1
> (1 rows)
> cqlsh:demo> delete from DemoCounter where pk = 'foo';
> cqlsh:demo> select * from DemoCounter;
> (0 rows)
> cqlsh:demo> update DemoCounter set cnt = cnt + 1 where pk = 'foo';
> cqlsh:demo> select * from DemoCounter;
>  pk  | cnt
> -----+------
>  foo | null
> (1 rows)
> cqlsh:demo>
> {noformat}



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