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Posted to commits@cassandra.apache.org by "Ashot Golovenko (JIRA)" <ji...@apache.org> on 2013/10/20 22:04:41 UTC
[jira] [Created] (CASSANDRA-6220) Unable to select multiple entries
using In clause on clustering part of compound key
Ashot Golovenko created CASSANDRA-6220:
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Summary: 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 <-- WRONG - only one result
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.
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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