Andreas Jaekle created CASSANDRA-11604:
------------------------------------------

             Summary: select on table fails after changing user defined type in 
map
                 Key: CASSANDRA-11604
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-11604
             Project: Cassandra
          Issue Type: Bug
            Reporter: Andreas Jaekle


in cassandra 3.5 i get the following exception when i run this cqls:
{code}
--DROP KEYSPACE bugtest ;
CREATE KEYSPACE bugtest
 WITH REPLICATION = { 'class' : 'SimpleStrategy', 'replication_factor' : 1 };
use bugtest;
CREATE TYPE tt (
        a boolean
);
create table t1 (
        k text,
        v map<text,frozen<tt>>,
        PRIMARY KEY(k)
);
insert into t1 (k,v) values ('k2',{'mk':{a:false}});
ALTER TYPE tt ADD b boolean;
UPDATE t1 SET v['mk'] = { b:true } WHERE k = 'k2';
select * from t1;  
{code}
the last select fails.
{code}
WARN  [SharedPool-Worker-5] 2016-04-19 14:18:49,885 
AbstractLocalAwareExecutorService.java:169 - Uncaught exception on thread 
Thread[SharedPool-Worker-5,5,main]: {}
java.lang.AssertionError: null
        at 
org.apache.cassandra.db.rows.ComplexColumnData$Builder.addCell(ComplexColumnData.java:254)
 ~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.db.rows.Row$Merger$ColumnDataReducer.getReduced(Row.java:623)
 ~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.db.rows.Row$Merger$ColumnDataReducer.getReduced(Row.java:549)
 ~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.utils.MergeIterator$ManyToOne.consume(MergeIterator.java:217)
 ~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.utils.MergeIterator$ManyToOne.computeNext(MergeIterator.java:156)
 ~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.utils.AbstractIterator.hasNext(AbstractIterator.java:47) 
~[apache-cassandra-3.5.jar:3.5]
        at org.apache.cassandra.db.rows.Row$Merger.merge(Row.java:526) 
~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.db.rows.UnfilteredRowIterators$UnfilteredRowMergeIterator$MergeReducer.getReduced(UnfilteredRowIterators.java:473)
 ~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.db.rows.UnfilteredRowIterators$UnfilteredRowMergeIterator$MergeReducer.getReduced(UnfilteredRowIterators.java:437)
 ~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.utils.MergeIterator$ManyToOne.consume(MergeIterator.java:217)
 ~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.utils.MergeIterator$ManyToOne.computeNext(MergeIterator.java:156)
 ~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.utils.AbstractIterator.hasNext(AbstractIterator.java:47) 
~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.db.rows.UnfilteredRowIterators$UnfilteredRowMergeIterator.computeNext(UnfilteredRowIterators.java:419)
 ~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.db.rows.UnfilteredRowIterators$UnfilteredRowMergeIterator.computeNext(UnfilteredRowIterators.java:279)
 ~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.utils.AbstractIterator.hasNext(AbstractIterator.java:47) 
~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.db.rows.LazilyInitializedUnfilteredRowIterator.computeNext(LazilyInitializedUnfilteredRowIterator.java:100)
 ~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.db.rows.LazilyInitializedUnfilteredRowIterator.computeNext(LazilyInitializedUnfilteredRowIterator.java:32)
 ~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.utils.AbstractIterator.hasNext(AbstractIterator.java:47) 
~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.db.transform.BaseRows.hasNext(BaseRows.java:112) 
~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.db.transform.UnfilteredRows.isEmpty(UnfilteredRows.java:38)
 ~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.db.partitions.PurgeFunction.applyToPartition(PurgeFunction.java:64)
 ~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.db.partitions.PurgeFunction.applyToPartition(PurgeFunction.java:24)
 ~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.db.transform.BasePartitions.hasNext(BasePartitions.java:76)
 ~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.db.partitions.UnfilteredPartitionIterators$Serializer.serialize(UnfilteredPartitionIterators.java:289)
 ~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.db.ReadResponse$LocalDataResponse.build(ReadResponse.java:134)
 ~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.db.ReadResponse$LocalDataResponse.<init>(ReadResponse.java:127)
 ~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.db.ReadResponse$LocalDataResponse.<init>(ReadResponse.java:123)
 ~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.db.ReadResponse.createDataResponse(ReadResponse.java:65) 
~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.db.ReadCommand.createResponse(ReadCommand.java:292) 
~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.service.StorageProxy$LocalReadRunnable.runMayThrow(StorageProxy.java:1799)
 ~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.service.StorageProxy$DroppableRunnable.run(StorageProxy.java:2466)
 ~[apache-cassandra-3.5.jar:3.5]
        at 
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) 
~[na:1.8.0_72-internal]
        at 
org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$FutureTask.run(AbstractLocalAwareExecutorService.java:164)
 ~[apache-cassandra-3.5.jar:3.5]
        at 
org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$LocalSessionFutureTask.run(AbstractLocalAwareExecutorService.java:136)
 [apache-cassandra-3.5.jar:3.5]
        at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:105) 
[apache-cassandra-3.5.jar:3.5]
        at java.lang.Thread.run(Thread.java:745) [na:1.8.0_72-internal]
{code}



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