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https://issues.apache.org/jira/browse/CASSANDRA-13920?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Alex Petrov updated CASSANDRA-13920:
------------------------------------
    Summary: Adding regular column to COMPACT STORAGE w/o clustering keys table 
causes an exception  (was: Altering COMPACT STORAGE w/o clustering keys table 
causes an exception)

> Adding regular column to COMPACT STORAGE w/o clustering keys table causes an 
> exception
> --------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-13920
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13920
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Alex Petrov
>            Priority: Minor
>
> When trying to {{ALTER}} a {{COMPACT TABLE}} without clustering keys (i.e. 
> non-dense one), you'll get an exception.
> Alter'ing non-dense compact tables should be forbidden, just as altering 
> dense columns which throws {{Cannot add new column to a COMPACT STORAGE 
> table}} (or the error message should be adjusted).
> dtest to reproduce:
> {code}
> from cql_tests import CQLTester
> class StorageProxyCQLTester(CQLTester):
>     def test_sparse_compact(self):
>         session = self.prepare(nodes=2, rf=2)
>         session.execute("CREATE TABLE sparse_compact_table (k int PRIMARY 
> KEY, v1 int, v2 int) WITH COMPACT STORAGE;")
>         session.execute("ALTER TABLE sparse_compact_table ADD wat int",)
> {code}
> Exception:
> {code}
> java.lang.AssertionError: null
>         at 
> org.apache.cassandra.db.CompactTables.getCompactValueColumn(CompactTables.java:67)
>  ~[main/:na]
>         at 
> org.apache.cassandra.config.CFMetaData.rebuild(CFMetaData.java:337) 
> ~[main/:na]
>         at 
> org.apache.cassandra.config.CFMetaData.validate(CFMetaData.java:935) 
> ~[main/:na]
>         at 
> org.apache.cassandra.service.MigrationManager.announceColumnFamilyUpdate(MigrationManager.java:421)
>  ~[main/:na]
>         at 
> org.apache.cassandra.cql3.statements.AlterTableStatement.announceMigration(AlterTableStatement.java:288)
>  ~[main/:na]
>         at 
> org.apache.cassandra.cql3.statements.SchemaAlteringStatement.execute(SchemaAlteringStatement.java:93)
>  ~[main/:na]
>         at 
> org.apache.cassandra.cql3.QueryProcessor.processStatement(QueryProcessor.java:206)
>  ~[main/:na]
>         at 
> org.apache.cassandra.cql3.QueryProcessor.process(QueryProcessor.java:237) 
> ~[main/:na]
>         at 
> org.apache.cassandra.cql3.QueryProcessor.process(QueryProcessor.java:222) 
> ~[main/:na]
>         at 
> org.apache.cassandra.transport.messages.QueryMessage.execute(QueryMessage.java:115)
>  ~[main/:na]
>         at 
> org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:513)
>  [main/:na]
>         at 
> org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:407)
>  [main/:na]
>         at 
> io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
>  [netty-all-4.0.44.Final.jar:4.0.44.Final]
>         at 
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357)
>  [netty-all-4.0.44.Final.jar:4.0.44.Final]
>         at 
> io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:35)
>  [netty-all-4.0.44.Final.jar:4.0.44.Final]
>         at 
> io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:348)
>  [netty-all-4.0.44.Final.jar:4.0.44.Final]
>         at 
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) 
> [na:1.8.0_121]
>         at 
> org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$FutureTask.run(AbstractLocalAwareExecutorService.java:164)
>  [main/:na]
>         at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:105) 
> [main/:na]
>         at java.lang.Thread.run(Thread.java:745) [na:1.8.0_121]
> {code}



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