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  1. Teiid
  2. TEIID-4244

Assertion failed error when joining duplicate rows to a table from other source

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: Major Major
    • 9.0, 8.13.6
    • 8.12
    • Query Engine
    • None
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      1. In postgresql create the test_a table by the following script:

      CREATE TABLE test_a
(
  a integer,
  b integer
);

INSERT INTO test_a(a, b) VALUES (1, 1);
INSERT INTO test_a(a, b) VALUES (1, 2);
INSERT INTO test_a(a, b) VALUES (2, 1);
INSERT INTO test_a(a, b) VALUES (2, 2);
INSERT INTO test_a(a, b) VALUES (3, 2);
INSERT INTO test_a(a, b) VALUES (3, 10);

      2. Add postgresql database configuration in standalone-teiid.xml

      <datasource jndi-name="java:/test_pg" pool-name="test_pg" enabled="true" use-java-context="true">
                    <connection-url>jdbc:postgresql://localhost:5432/test?charSet=utf8</connection-url>
                    <driver-class>org.postgresql.Driver</driver-class>
                    <driver>org.postgresql</driver>
                    <pool>
                        <min-pool-size>2</min-pool-size>
                        <max-pool-size>70</max-pool-size>
                        <prefill>false</prefill>
                        <use-strict-min>false</use-strict-min>
                        <flush-strategy>FailingConnectionOnly</flush-strategy>
                    </pool>
                    <security>
                        <user-name>postgres</user-name>
                        <password>xxxxxx</password>
                    </security>
                    <validation>
                        <check-valid-connection-sql>select 0</check-valid-connection-sql>
                    </validation>
                    <timeout>
                        <blocking-timeout-millis>120000</blocking-timeout-millis>
                        <idle-timeout-minutes>5</idle-timeout-minutes>
                    </timeout>
                </datasource>

      3. Add in test-vdb.xml java:/test_pg configured in previous step as datasource:

          <model name="test_pg">
        <property name="importer.useFullSchemaName" value="false"/>
	<property name="importer.tableTypes" value="TABLE,VIEW"/>
	<property name="importer.importKeys" value="false"/>
        <source name="test_pg" translator-name="myPg" connection-jndi-name="java:/test_pg"/>
    </model>

      4. Run the query:

      select * from (select 3 as a, 3 as b union all
	select 1 as a, 1 as b union all
	select 3 as a, 3 as b) as t1 join test_pg.test_a t2 on t1.a=t2.a limit 10;

      which will fail with ASSERTION FAILED error message. But the following query won't fail:

      select * from (select 1 as a, 1 as b union all
	select 3 as a, 3 as b) as t1 join test_pg.test_a t2 on t1.a=t2.a;
      Show
      1. In postgresql create the test_a table by the following script: CREATE TABLE test_a ( a integer , b integer ); INSERT INTO test_a( a , b) VALUES (1, 1); INSERT INTO test_a( a , b) VALUES (1, 2); INSERT INTO test_a( a , b) VALUES (2, 1); INSERT INTO test_a( a , b) VALUES (2, 2); INSERT INTO test_a( a , b) VALUES (3, 2); INSERT INTO test_a( a , b) VALUES (3, 10); 2. Add postgresql database configuration in standalone-teiid.xml <datasource jndi-name= "java:/test_pg" pool-name= "test_pg" enabled= "true" use-java-context= "true" > <connection-url> jdbc:postgresql://localhost:5432/test?charSet=utf8 </connection-url> <driver-class> org.postgresql.Driver </driver-class> <driver> org.postgresql </driver> <pool> <min-pool-size> 2 </min-pool-size> <max-pool-size> 70 </max-pool-size> <prefill> false </prefill> <use-strict-min> false </use-strict-min> <flush-strategy> FailingConnectionOnly </flush-strategy> </pool> <security> <user-name> postgres </user-name> <password> xxxxxx </password> </security> <validation> <check-valid-connection-sql> select 0 </check-valid-connection-sql> </validation> <timeout> <blocking-timeout-millis> 120000 </blocking-timeout-millis> <idle-timeout-minutes> 5 </idle-timeout-minutes> </timeout> </datasource> 3. Add in test-vdb.xml java:/test_pg configured in previous step as datasource: <model name= "test_pg" > <property name= "importer.useFullSchemaName" value= "false" /> <property name= "importer.tableTypes" value= "TABLE,VIEW" /> <property name= "importer.importKeys" value= "false" /> <source name= "test_pg" translator-name= "myPg" connection-jndi-name= "java:/test_pg" /> </model> 4. Run the query: select * from ( select 3 as a , 3 as b union all select 1 as a , 1 as b union all select 3 as a , 3 as b) as t1 join test_pg.test_a t2 on t1. a =t2. a limit 10; which will fail with ASSERTION FAILED error message. But the following query won't fail: select * from ( select 1 as a , 1 as b union all select 3 as a , 3 as b) as t1 join test_pg.test_a t2 on t1. a =t2. a ;

      I get the following error when joining duplicate rows to a table from other source:

      17:20:52,718 ERROR [org.teiid.PROCESSOR] (Worker0_QueryProcessorQueue21) irzl30n7Sda0 TEIID30019 Unexpected exception for request irzl30n7Sda0.8: java.lang.AssertionError: ASSERTION
FAILED: expected reference to be not null
        at org.teiid.core.util.Assertion.failed(Assertion.java:73) [teiid-common-core-8.12.0.Beta1.jar:8.12.0.Beta1]
        at org.teiid.core.util.Assertion.isNotNull(Assertion.java:100) [teiid-common-core-8.12.0.Beta1.jar:8.12.0.Beta1]
        at org.teiid.core.util.Assertion.isNotNull(Assertion.java:92) [teiid-common-core-8.12.0.Beta1.jar:8.12.0.Beta1]
        at org.teiid.common.buffer.TupleBuffer.getBatch(TupleBuffer.java:286) [teiid-engine-8.12.0.Beta1.jar:8.12.0.Beta1]
        at org.teiid.common.buffer.TupleBuffer$TupleBufferTupleSource.getBatch(TupleBuffer.java:74) [teiid-engine-8.12.0.Beta1.jar:8.12.0.Beta1]
        at org.teiid.common.buffer.AbstractTupleSource.getCurrentTuple(AbstractTupleSource.java:62) [teiid-engine-8.12.0.Beta1.jar:8.12.0.Beta1]
        at org.teiid.common.buffer.AbstractTupleSource.hasNext(AbstractTupleSource.java:92) [teiid-engine-8.12.0.Beta1.jar:8.12.0.Beta1]
        at org.teiid.query.processor.relational.MergeJoinStrategy.compareToPrevious(MergeJoinStrategy.java:279) [teiid-engine-8.12.0.Beta1.jar:8.12.0.Beta1]
        at org.teiid.query.processor.relational.MergeJoinStrategy.process(MergeJoinStrategy.java:237) [teiid-engine-8.12.0.Beta1.jar:8.12.0.Beta1]
        at org.teiid.query.processor.relational.EnhancedSortMergeJoinStrategy.process(EnhancedSortMergeJoinStrategy.java:416) [teiid-engine-8.12.0.Beta1.jar:8.12.0.Beta1]
        at org.teiid.query.processor.relational.JoinNode.nextBatchDirect(JoinNode.java:227) [teiid-engine-8.12.0.Beta1.jar:8.12.0.Beta1]
        at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:278) [teiid-engine-8.12.0.Beta1.jar:8.12.0.Beta1]
        at org.teiid.query.processor.relational.LimitNode.nextBatchDirect(LimitNode.java:102) [teiid-engine-8.12.0.Beta1.jar:8.12.0.Beta1]
        at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:278) [teiid-engine-8.12.0.Beta1.jar:8.12.0.Beta1]
        at org.teiid.query.processor.relational.ProjectNode.nextBatchDirect(ProjectNode.java:148) [teiid-engine-8.12.0.Beta1.jar:8.12.0.Beta1]
        at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:278) [teiid-engine-8.12.0.Beta1.jar:8.12.0.Beta1]
        at org.teiid.query.processor.relational.RelationalPlan.nextBatch(RelationalPlan.java:145) [teiid-engine-8.12.0.Beta1.jar:8.12.0.Beta1]
        at org.teiid.query.processor.QueryProcessor.nextBatchDirect(QueryProcessor.java:151) [teiid-engine-8.12.0.Beta1.jar:8.12.0.Beta1]
        at org.teiid.query.processor.QueryProcessor.nextBatch(QueryProcessor.java:114) [teiid-engine-8.12.0.Beta1.jar:8.12.0.Beta1]
        at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:164) [teiid-engine-8.12.0.Beta1.jar:8.12.0.Beta1]
        at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:146) [teiid-engine-8.12.0.Beta1.jar:8.12.0.Beta1]
        at org.teiid.dqp.internal.process.RequestWorkItem.processMore(RequestWorkItem.java:462) [teiid-engine-8.12.0.Beta1.jar:8.12.0.Beta1]
        at org.teiid.dqp.internal.process.RequestWorkItem.process(RequestWorkItem.java:344) [teiid-engine-8.12.0.Beta1.jar:8.12.0.Beta1]
        at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:51) [teiid-engine-8.12.0.Beta1.jar:8.12.0.Beta1]
        at org.teiid.dqp.internal.process.RequestWorkItem.run(RequestWorkItem.java:271) [teiid-engine-8.12.0.Beta1.jar:8.12.0.Beta1]
        at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:276) [teiid-engine-8.12.0.Beta1.jar:8.12.0.Beta1]
        at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:119) [teiid-engine-8.12.0.Beta1.jar:8.12.0.Beta1]
        at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:210) [teiid-engine-8.12.0.Beta1.jar:8.12.0.Beta1]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_67]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_67]
        at java.lang.Thread.run(Thread.java:745) [rt.jar:1.7.0_67]

              rhn-engineering-shawkins Steven Hawkins
              dalex005 Dmitrii Pogorelov
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                Created:
                Updated:
                Resolved: