Assertion failed with UNION then EXCEPT --------------------------------------- Key: TEIID-3101 URL: https://issues.jboss.org/browse/TEIID-3101 Project: Teiid Issue Type: Bug Components: Query Engine Affects Versions: 8.9 Reporter: Tom Arnold Assignee: Steven Hawkins Fix For: 8.7.1, 8.9 Ran into this when playing with set operations. Teiid 8.9.0.Alpha2 from Git. Query: {code:sql} (select 'a' union select 'b') except select 'c'; {code} Trace: {code} 03:18:45,467 DEBUG [org.teiid.COMMAND_LOG] (New I/O worker #12) WEI32e8Ynv+s START USER COMMAND: startTime=2014-08-27 03:18:45.467 requestID=WEI32e8Ynv+s.70 txID=null sessionID=WEI32e8Ynv+s applicationName=JDBCprincipal=user@teiid-security vdbName=Foo vdbVersion=1 sql=(select 'a' union select 'b') except select 'c' 03:18:45,470 INFO [org.teiid.PLANNER] (Worker13_QueryProcessorQueue748) WEI32e8Ynv+s ============================================================================ USER COMMAND: SELECT 'a' UNION SELECT 'b' EXCEPT SELECT 'c' ---------------------------------------------------------------------------- OPTIMIZE: SELECT 'a' UNION SELECT 'b' EXCEPT SELECT 'c' ---------------------------------------------------------------------------- GENERATE CANONICAL: SELECT 'a' UNION SELECT 'b' EXCEPT SELECT 'c' CANONICAL PLAN: SetOperation(groups=[], props={SET_OPERATION=EXCEPT, USE_ALL=false}) SetOperation(groups=[], props={SET_OPERATION=UNION, USE_ALL=false}) Project(groups=[], props={PROJECT_COLS=['a']}) Project(groups=[], props={PROJECT_COLS=['b']}) Project(groups=[], props={PROJECT_COLS=['c']}) ============================================================================ EXECUTING PlaceAccess AFTER: SetOperation(groups=[], props={SET_OPERATION=EXCEPT, USE_ALL=false}) SetOperation(groups=[], props={SET_OPERATION=UNION, USE_ALL=false}) Project(groups=[], props={PROJECT_COLS=['a']}) Project(groups=[], props={PROJECT_COLS=['b']}) Project(groups=[], props={PROJECT_COLS=['c']}) ============================================================================ EXECUTING PlanUnions AFTER: SetOperation(groups=[], props={SET_OPERATION=EXCEPT, USE_ALL=false}) SetOperation(groups=[], props={SET_OPERATION=UNION, USE_ALL=true}) Project(groups=[]) Project(groups=[]) Project(groups=[]) ============================================================================ EXECUTING RaiseAccess AFTER: SetOperation(groups=[]) SetOperation(groups=[]) Project(groups=[]) Project(groups=[]) Project(groups=[]) ============================================================================ EXECUTING AssignOutputElements AFTER: SetOperation(groups=[], props={SET_OPERATION=EXCEPT, USE_ALL=false, OUTPUT_COLS=['a']}) SetOperation(groups=[], props={SET_OPERATION=UNION, USE_ALL=true, OUTPUT_COLS=['a']}) Project(groups=[], props={PROJECT_COLS=['a'], OUTPUT_COLS=['a']}) Project(groups=[], props={PROJECT_COLS=['b'], OUTPUT_COLS=['b']}) Project(groups=[], props={PROJECT_COLS=['c'], OUTPUT_COLS=['c']}) ============================================================================ EXECUTING CalculateCost AFTER: SetOperation(groups=[], props={SET_OPERATION=EXCEPT, USE_ALL=false, OUTPUT_COLS=['a'], EST_CARDINALITY=1.0, EST_COL_STATS={'a'=[1.0, 1.0]}}) SetOperation(groups=[], props={SET_OPERATION=UNION, USE_ALL=true, OUTPUT_COLS=['a'], EST_CARDINALITY=2.0, EST_COL_STATS={'a'=[1.5, 0.0]}}) Project(groups=[], props={PROJECT_COLS=['a'], OUTPUT_COLS=['a'], EST_CARDINALITY=1.0, EST_COL_STATS={'a'=[1.0, 0.0]}}) Project(groups=[], props={PROJECT_COLS=['b'], OUTPUT_COLS=['b'], EST_CARDINALITY=1.0, EST_COL_STATS={'b'=[1.0, 0.0]}}) Project(groups=[], props={PROJECT_COLS=['c'], OUTPUT_COLS=['c'], EST_CARDINALITY=1.0, EST_COL_STATS={'c'=[1.0, 0.0]}}) ============================================================================ EXECUTING PlanSorts AFTER: SetOperation(groups=[], props={SET_OPERATION=EXCEPT, USE_ALL=false, OUTPUT_COLS=['a'], EST_CARDINALITY=1.0, EST_COL_STATS={'a'=[1.0, 1.0]}}) SetOperation(groups=[], props={SET_OPERATION=UNION, USE_ALL=true, OUTPUT_COLS=['a'], EST_CARDINALITY=2.0, EST_COL_STATS={'a'=[1.5, 0.0]}}) Project(groups=[]) Project(groups=[]) Project(groups=[]) ============================================================================ EXECUTING CollapseSource AFTER: SetOperation(groups=[]) SetOperation(groups=[]) Project(groups=[]) Project(groups=[]) Project(groups=[]) ============================================================================ CONVERTING PLAN TREE TO PROCESS TREE PROCESS PLAN = JoinNode(0) [MERGE JOIN (SORT_DISTINCT/SORT_DISTINCT)] [ANTI SEMI JOIN] criteria=['a'='c'] output=['a'] ProjectNode(2) output=['a'] ['a'] ProjectNode(3) output=['b'] ['b'] ProjectNode(4) output=['c'] ['c'] ============================================================================ ---------------------------------------------------------------------------- OPTIMIZATION COMPLETE: PROCESSOR PLAN: JoinNode(0) [MERGE JOIN (SORT_DISTINCT/SORT_DISTINCT)] [ANTI SEMI JOIN] criteria=['a'='c'] output=['a'] ProjectNode(2) output=['a'] ['a'] ProjectNode(3) output=['b'] ['b'] ProjectNode(4) output=['c'] ['c'] ============================================================================ 03:18:45,473 DEBUG [org.teiid.COMMAND_LOG] (Worker13_QueryProcessorQueue748) WEI32e8Ynv+s ERROR USER COMMAND: endTime=2014-08-27 03:18:45.472 requestID=WEI32e8Ynv+s.70 txID=null sessionID=WEI32e8Ynv+s principal=user@teiid-security vdbName=Foo vdbVersion=1 finalRowCount=null 03:18:45,473 ERROR [org.teiid.PROCESSOR] (Worker13_QueryProcessorQueue748) WEI32e8Ynv+s TEIID30019 Unexpected exception for request WEI32e8Ynv+s.70: java.lang.AssertionError: Assertion failed. at org.teiid.core.util.Assertion.failed(Assertion.java:73) [teiid-common-core-8.9.0.Alpha2-SNAPSHOT.jar:8.9.0.Alpha2-SNAPSHOT] at org.teiid.core.util.Assertion.assertTrue(Assertion.java:68) [teiid-common-core-8.9.0.Alpha2-SNAPSHOT.jar:8.9.0.Alpha2-SNAPSHOT] at org.teiid.core.util.Assertion.assertTrue(Assertion.java:60) [teiid-common-core-8.9.0.Alpha2-SNAPSHOT.jar:8.9.0.Alpha2-SNAPSHOT] at org.teiid.query.processor.relational.SortUtility.<init>(SortUtility.java:158) [teiid-engine-8.9.0.Alpha2-SNAPSHOT.jar:8.9.0.Alpha2-SNAPSHOT] at org.teiid.query.processor.relational.SortUtility.<init>(SortUtility.java:194) [teiid-engine-8.9.0.Alpha2-SNAPSHOT.jar:8.9.0.Alpha2-SNAPSHOT] at org.teiid.query.processor.relational.SourceState.sort(SourceState.java:287) [teiid-engine-8.9.0.Alpha2-SNAPSHOT.jar:8.9.0.Alpha2-SNAPSHOT] at org.teiid.query.processor.relational.MergeJoinStrategy.loadRight(MergeJoinStrategy.java:359) [teiid-engine-8.9.0.Alpha2-SNAPSHOT.jar:8.9.0.Alpha2-SNAPSHOT] at org.teiid.query.processor.relational.JoinNode.nextBatchDirect(JoinNode.java:208) [teiid-engine-8.9.0.Alpha2-SNAPSHOT.jar:8.9.0.Alpha2-SNAPSHOT] at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:278) [teiid-engine-8.9.0.Alpha2-SNAPSHOT.jar:8.9.0.Alpha2-SNAPSHOT] at org.teiid.query.processor.relational.RelationalPlan.nextBatch(RelationalPlan.java:136) [teiid-engine-8.9.0.Alpha2-SNAPSHOT.jar:8.9.0.Alpha2-SNAPSHOT] at org.teiid.query.processor.QueryProcessor.nextBatchDirect(QueryProcessor.java:151) [teiid-engine-8.9.0.Alpha2-SNAPSHOT.jar:8.9.0.Alpha2-SNAPSHOT] at org.teiid.query.processor.QueryProcessor.nextBatch(QueryProcessor.java:114) [teiid-engine-8.9.0.Alpha2-SNAPSHOT.jar:8.9.0.Alpha2-SNAPSHOT] at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:164) [teiid-engine-8.9.0.Alpha2-SNAPSHOT.jar:8.9.0.Alpha2-SNAPSHOT] at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:146) [teiid-engine-8.9.0.Alpha2-SNAPSHOT.jar:8.9.0.Alpha2-SNAPSHOT] at org.teiid.dqp.internal.process.RequestWorkItem.processMore(RequestWorkItem.java:444) [teiid-engine-8.9.0.Alpha2-SNAPSHOT.jar:8.9.0.Alpha2-SNAPSHOT] at org.teiid.dqp.internal.process.RequestWorkItem.process(RequestWorkItem.java:326) [teiid-engine-8.9.0.Alpha2-SNAPSHOT.jar:8.9.0.Alpha2-SNAPSHOT] at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:51) [teiid-engine-8.9.0.Alpha2-SNAPSHOT.jar:8.9.0.Alpha2-SNAPSHOT] at org.teiid.dqp.internal.process.RequestWorkItem.run(RequestWorkItem.java:254) [teiid-engine-8.9.0.Alpha2-SNAPSHOT.jar:8.9.0.Alpha2-SNAPSHOT] at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:274) [teiid-engine-8.9.0.Alpha2-SNAPSHOT.jar:8.9.0.Alpha2-SNAPSHOT] at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:119) [teiid-engine-8.9.0.Alpha2-SNAPSHOT.jar:8.9.0.Alpha2-SNAPSHOT] at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:214) [teiid-engine-8.9.0.Alpha2-SNAPSHOT.jar:8.9.0.Alpha2-SNAPSHOT] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) [rt.jar:1.7.0_02] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) [rt.jar:1.7.0_02] at java.lang.Thread.run(Thread.java:722) [rt.jar:1.7.0_02] {code}