Cassandra does not account for null values ------------------------------------------ Key: TEIID-3964 URL: https://issues.jboss.org/browse/TEIID-3964 Project: Teiid Issue Type: Bug Components: Misc. Connectors Affects Versions: 8.6 Reporter: Filip Elias Assignee: Steven Hawkins Priority: Blocker Fix For: 9.0, 8.12.5, 8.13.1 Attachments: cassandra-vdb.xml primitive wrapper types (integer, long, float, double, etc.) do not account for null values from Cassandra, but instead return their default 0 value. Teiid also throws NPE when Blob column contains null. Query (should return [14,null]): {code}select intkey, objectvalue from smalla where intkey = 14 {code} Stack Trace: {code} 12:14:58,599 ERROR [org.teiid.CONNECTOR] (Worker0_QueryProcessorQueue7) Connector worker process failed for atomic-request=afOb+DA5w6pF.5.0.5: java.lang.NullPointerException at org.teiid.translator.cassandra.CassandraQueryExecution.getRow(CassandraQueryExecution.java:160) [translator-cassandra-8.12.3.redhat-1.jar:8.12.3.redhat-1] at org.teiid.translator.cassandra.CassandraQueryExecution.next(CassandraQueryExecution.java:86) [translator-cassandra-8.12.3.redhat-1.jar:8.12.3.redhat-1] at org.teiid.dqp.internal.datamgr.ConnectorWorkItem.handleBatch(ConnectorWorkItem.java:419) at org.teiid.dqp.internal.datamgr.ConnectorWorkItem.more(ConnectorWorkItem.java:220) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.8.0_45] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [rt.jar:1.8.0_45] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.8.0_45] at java.lang.reflect.Method.invoke(Method.java:497) [rt.jar:1.8.0_45] at org.teiid.dqp.internal.datamgr.ConnectorManager$1.invoke(ConnectorManager.java:211) at com.sun.proxy.$Proxy94.more(Unknown Source) at org.teiid.dqp.internal.process.DataTierTupleSource.getResults(DataTierTupleSource.java:309) at org.teiid.dqp.internal.process.DataTierTupleSource.nextTuple(DataTierTupleSource.java:142) at org.teiid.query.processor.relational.AccessNode.nextBatchDirect(AccessNode.java:374) at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:282) at org.teiid.query.processor.relational.RelationalPlan.nextBatch(RelationalPlan.java:145) at org.teiid.query.processor.QueryProcessor.nextBatchDirect(QueryProcessor.java:151) at org.teiid.query.processor.QueryProcessor.nextBatch(QueryProcessor.java:114) at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:164) at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:146) at org.teiid.dqp.internal.process.RequestWorkItem.processMore(RequestWorkItem.java:470) at org.teiid.dqp.internal.process.RequestWorkItem.process(RequestWorkItem.java:348) at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:51) at org.teiid.dqp.internal.process.RequestWorkItem.run(RequestWorkItem.java:274) at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:276) at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:119) at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:210) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0_45] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0_45] at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_45] {code}