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https://issues.apache.org/jira/browse/CASSANDRA-6160?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14295654#comment-14295654
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Nicolas Favre-Felix commented on CASSANDRA-6160:
------------------------------------------------
Unfortunately this breaks secondary indexes on primary key dimensions:
{code}
cqlsh:ks1> create table test3 (col1 int, col2 int, col3 counter, primary
key((col1, col2)));
cqlsh:ks1> update test3 set col3 = col3 + 3 where col1 = 1 and col2 = 2;
cqlsh:ks1> select * from test3;
col1 | col2 | col3
------+------+------
1 | 2 | 3
(1 rows)
cqlsh:ks1> create index expected on test3(col2);
Bad Request: Secondary indexes are not supported on counter tables
{code}
With RMW counters, we should be able to add both the counter write and the
secondary index update in the same commit log entry. I couldn't find a JIRA for
this; is there one?
> Throw errror when attempting to create a secondary index against counter
> ------------------------------------------------------------------------
>
> Key: CASSANDRA-6160
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6160
> Project: Cassandra
> Issue Type: Bug
> Components: API
> Reporter: Adam Hattrell
> Assignee: Sylvain Lebresne
> Priority: Minor
> Fix For: 1.2.11
>
> Attachments: 6160.txt
>
>
> Using CQL you can create a secondary index against a counter which is then
> non-functional.
> {code}
> cqlsh:test> create table test2 (col1 int, col2 counter, primary key (col1)) ;
> cqlsh:test> create index dodgy on test2(col2) ;
> cqlsh:test> update test2 set col2 = col2 + 0 where col1 = 1 ;
> cqlsh:test> select * from test2 ;
> col1 | col2
> ------+------
> 1 | 0
> cqlsh:t7088> select * from test2 where col2 = 0 ;
> {code}
> We should return an error to let users know they are in unsupported territory.
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