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Posted to commits@cassandra.apache.org by "ZhaoYang (JIRA)" <ji...@apache.org> on 2015/11/23 04:26:10 UTC

[jira] [Created] (CASSANDRA-10755) PreparedStatement is the same id for different Japanese katakana characters but same length

ZhaoYang created CASSANDRA-10755:
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             Summary: PreparedStatement is the same id for different Japanese katakana characters but same length
                 Key: CASSANDRA-10755
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10755
             Project: Cassandra
          Issue Type: Bug
         Environment: cassandra-2.1.8, java driver 2.1.5, ubuntu 14.04
            Reporter: ZhaoYang


String q1 = "UPDATE table SET value='タニャア' WHERE key=? AND key2=?";
String q2 = "UPDATE table SET value='ャアタニ' WHERE key=? AND key2=?";

when using  session.prepare().

q1 and q2 will return the prepared-statement with the same prepared ID.

So if I update using q1 first, all later q2 will not be able to update.

Please note that the Japanese katakana is the same length in q1 and q2.

Is it related to how Cassandra cache prepared statement?



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