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  1. Teiid
  2. TEIID-5146

UNION of two similar JOIN queries fails with ASSERTION FAILED error if it contains table function of procedural call with arguments

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    • Bug
    • Resolution: Done
    • Major
    • 9.3.5, 10.1, 10.0.1
    • 9.3.4
    • Query Engine
    • None
    • Hide

      Create two tables in a PostgreSQL database like this:

      create table test_t1(col_t1 varchar);
insert into test_t1 values ('1'); -- x 20 times
create table test_t2(col_t2 integer);
insert into test_t2 values (1); -- x 20 times

      add that PG database like this:

          <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>
...
    <translator name="myPg" type="postgresql">
        <property name="SupportsNativeQueries" value="true"/>
    </translator>

      Add a virtual schema then:

          <model visible = "true" type = "VIRTUAL" name = "views">
        <metadata type = "DDL"><![CDATA[
CREATE VIRTUAL PROCEDURE pr0(arg1 string) returns (res1 string) AS
	BEGIN
	    SELECT '2017-01-01';
	END
        ]]>
        </metadata>
    </model>

      And run the following query:

      SELECT d.col_t2 FROM "test_pg.test_t1", table(CALL views.pr0("arg1" => col_t1)) x
	JOIN "test_pg.test_t2" d 
		ON true
--
UNION all
--
SELECT d.col_t2 FROM "test_pg.test_t1", table(CALL views.pr0("arg1" => col_t1)) x
	JOIN "test_pg.test_t2" d 
		ON true
      Show
      Create two tables in a PostgreSQL database like this: create table test_t1(col_t1 varchar ); insert into test_t1 values ( '1' ); -- x 20 times create table test_t2(col_t2 integer ); insert into test_t2 values (1); -- x 20 times add that PG database like this: <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> ... <translator name= "myPg" type= "postgresql" > <property name= "SupportsNativeQueries" value= "true" /> </translator> Add a virtual schema then: <model visible = "true" type = "VIRTUAL" name = "views" > <metadata type = "DDL" > <![CDATA[ CREATE VIRTUAL PROCEDURE pr0(arg1 string) returns (res1 string) AS BEGIN SELECT '2017-01-01' ; END ]]> </metadata> </model> And run the following query: SELECT d.col_t2 FROM "test_pg.test_t1" , table ( CALL views.pr0( "arg1" => col_t1)) x JOIN "test_pg.test_t2" d ON true -- UNION all -- SELECT d.col_t2 FROM "test_pg.test_t1" , table ( CALL views.pr0( "arg1" => col_t1)) x JOIN "test_pg.test_t2" d ON true

    Description

      UNION of two similar JOINs containing table function of procedural call with arguments, like:

      SELECT d.col_t2 FROM "ds.test_t1", table(CALL views.pr0("arg1" => col_t1)) x
	JOIN "ds.test_t2" d 
		ON true
--
UNION
--
SELECT d.col_t2 FROM "ds.test_t1", table(CALL views.pr0("arg1" => col_t1)) x
	JOIN "ds.test_t2" d 
		ON true

      fails with error:

      2017-11-11 16:16:57,158 ERROR [org.teiid.PROCESSOR] (Worker2_QueryProcessorQueue23) wbDLp863MJn9 TEIID30019 Unexpected exception for request wbDLp863MJn9.7: java.lang.AssertionError: ASSERTION FAILED: expected reference to be not null
	at org.teiid.core.util.Assertion.failed(Assertion.java:73)
	at org.teiid.core.util.Assertion.isNotNull(Assertion.java:100)
	at org.teiid.core.util.Assertion.isNotNull(Assertion.java:92)
	at org.teiid.common.buffer.TupleBuffer.getBatch(TupleBuffer.java:287)
	at org.teiid.dqp.internal.process.TupleSourceCache$CopyOnReadTupleSource.nextTuple(TupleSourceCache.java:103)
	at org.teiid.query.processor.relational.AccessNode.nextBatchDirect(AccessNode.java:394)
	at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:281)
	at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:164)
	at org.teiid.query.processor.relational.SourceState.prefetch(SourceState.java:211)
	at org.teiid.query.processor.relational.SourceState.rowCountLE(SourceState.java:158)
	at org.teiid.query.processor.relational.JoinNode.nextBatchDirect(JoinNode.java:227)
	at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:281)
	at org.teiid.query.processor.relational.LimitNode.nextBatchDirect(LimitNode.java:102)
	at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:281)
	at org.teiid.query.processor.BatchIterator.finalRow(BatchIterator.java:69)
	at org.teiid.common.buffer.AbstractTupleSource.getCurrentTuple(AbstractTupleSource.java:70)
	at org.teiid.query.processor.BatchIterator.getCurrentTuple(BatchIterator.java:84)
	at org.teiid.common.buffer.AbstractTupleSource.hasNext(AbstractTupleSource.java:92)
	at org.teiid.query.processor.relational.NestedTableJoinStrategy.process(NestedTableJoinStrategy.java:119)
	at org.teiid.query.processor.relational.JoinNode.nextBatchDirect(JoinNode.java:235)
	at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:281)
	at org.teiid.query.processor.relational.LimitNode.nextBatchDirect(LimitNode.java:102)
	at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:281)
	at org.teiid.query.processor.relational.ProjectNode.nextBatchDirect(ProjectNode.java:150)
	at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:281)
	at org.teiid.query.processor.relational.UnionAllNode.nextBatchDirect(UnionAllNode.java:147)
	at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:281)
	at org.teiid.query.processor.relational.LimitNode.nextBatchDirect(LimitNode.java:102)
	at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:281)
	at org.teiid.query.processor.relational.RelationalPlan.nextBatch(RelationalPlan.java:145)
	at org.teiid.query.processor.QueryProcessor.nextBatchDirect(QueryProcessor.java:152)
	at org.teiid.query.processor.QueryProcessor.nextBatch(QueryProcessor.java:115)
	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:479)
	at org.teiid.dqp.internal.process.RequestWorkItem.process(RequestWorkItem.java:349)
	at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:51)
	at org.teiid.dqp.internal.process.RequestWorkItem.run(RequestWorkItem.java:275)
	at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:284)
	at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:119)
	at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:210)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)

      even if procedure doesn't use that argument at all.

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            rhn-engineering-shawkins Steven Hawkins
            e1fueg0 111 111
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              Created:
              Updated:
              Resolved: