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Posted to commits@cassandra.apache.org by "Laurentiu Amitroaie (JIRA)" <ji...@apache.org> on 2017/03/24 08:59:42 UTC

[jira] [Created] (CASSANDRA-13375) Cassandra v3.10 - UDA throws AssertionError when no records in select

Laurentiu Amitroaie created CASSANDRA-13375:
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             Summary: Cassandra v3.10 - UDA throws AssertionError when no records in select 
                 Key: CASSANDRA-13375
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13375
             Project: Cassandra
          Issue Type: Bug
          Components: CQL
            Reporter: Laurentiu Amitroaie
         Attachments: aggregate_with_no_records.cql

If the aggregate function is used in a select which fetches no records there is a ServerError reported. 

It seems the a bug in org.apache.cassandra.cql3.functions.UDAggregate, there is an  "assert !needsInit;" done on compute. 

Attached is a file which creates a keyspace / table / data records and UDF/UDA to replicate the issue. 



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