[jira] [Commented] (CASSANDRA-6220) Unable to select multiple entries using In clause on clustering part of compound key

["Ashot Golovenko (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-6220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13800213#comment-13800213 ] 

Ashot Golovenko commented on CASSANDRA-6220:
--------------------------------------------

looks like the same problem

> Unable to select multiple entries using In clause on clustering part of compound key
> ------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-6220
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6220
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>            Reporter: Ashot Golovenko
>
> I have the following table:
> CREATE TABLE rating (
>     id bigint,
>     mid int,
>     hid int,
>     r double,
>     PRIMARY KEY ((id, mid), hid));
> And I get really really strange result sets on the following queries:
> cqlsh:bm> SELECT hid, r FROM rating WHERE id  = 755349113 and mid = 201310 and hid = 201329320;
>  hid       | r
> -----------+--------
>  201329320 | 45.476
> (1 rows)
> cqlsh:bm> SELECT hid, r FROM rating WHERE id  = 755349113 and mid = 201310 and hid = 201329220;
>  hid       | r
> -----------+-------
>  201329220 | 53.62
> (1 rows)
> cqlsh:bm> SELECT hid, r FROM rating WHERE id  = 755349113 and mid = 201310 and hid in (201329320, 201329220);
>  hid       | r
> -----------+--------
>  201329320 | 45.476
> (1 rows)  <-- WRONG - should be two records
> As you can see although both records exist I'm not able the fetch all of them using in clause. By now I have to cycle my requests which are about 30 and I find it highly inefficient given that I query physically the same row. 
> More of that  - it doesn't happen all the time! For different id values sometimes I get the correct dataset.
> Ideally I'd like the following select to work:
> SELECT hid, r FROM rating WHERE id  = 755349113 and mid in ? and hid in ?;
> Which doesn't work either.



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