Mateusz Moneta created CASSANDRA-8824:
-----------------------------------------
Summary: cassandra python driver return None when querying static
column on partition bigger than 5000 entites
Key: CASSANDRA-8824
URL: https://issues.apache.org/jira/browse/CASSANDRA-8824
Project: Cassandra
Issue Type: Bug
Reporter: Mateusz Moneta
When we querying partition with static column that has more than 5000 entities
some of them has unset static value, however when querying by cqlsh everything
is fine.
Here is example, {{expire}} is a static column, {{folder_id}} is primary key.
{noformat}
cqlsh> select id, parent_id, expire, mtime from share.entity where
folder_id='68f2af3a2d1e4f95a231d5cb47e57cf2' and mtime < '2015-02-01
06:21:25+0000';
id | parent_id | expire | mtime
----------------------------------+-----------+--------------------------+--------------------------
68f2af3a2d1e4f95a231d5cb47e57cf2 | null | 2015-02-22 10:51:27+0000 |
2015-02-01 06:21:24+0000
cqlsh> select count(*) from share.entity where
folder_id='68f2af3a2d1e4f95a231d5cb47e57cf2';
count
-------
5547
In [1]: from django.db import connection
In [2]: ses = connection.connection.session
In [3]: from cassandra.query import SimpleStatement
In [13]: query = "select * from share.entity where
folder_id='68f2af3a2d1e4f95a231d5cb47e57cf2'";
In [14]: st = SimpleStatement(query)
In [15]: c, d = 0, 0
In [16]: for e in ses.execute(st):
if e['expire'] is None:
c += 1
else:
d += 1
In [17]: c
Out[17]: 547
In [18]: d
Out[18]: 5000
{noformat}
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