[CALCITE-2278] AggregateJoinTransposeRule fails to split aggregate call if input contains an aggregate call and has distinct rows

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.17.0
• Component/s: core
• Assignee: Julian Hyde
• Reporter: Haisheng Yuan
• Created: 24/Apr/18 22:01
• Updated: 20/Jul/18 08:18
• Resolved: 21/May/18 22:03

Description

For the following query:

select A.job, B.mgr, A.deptno,
 max(B.hiredate1) as hiredate1, sum(B.comm1) as comm1
 from sales.emp as A
 join (select mgr, sal, max(hiredate) as hiredate1,
 sum(comm) as comm1 from sales.emp group by mgr, sal) as B
 on A.sal=B.sal
 group by A.job, B.mgr, A.deptno

 

Exception is thrown out: 

java.lang.IndexOutOfBoundsException: index (7) must be less than size (6)
at com.google.common.base.Preconditions.checkElementIndex(Preconditions.java:310)
 at com.google.common.base.Preconditions.checkElementIndex(Preconditions.java:293)
 at com.google.common.collect.RegularImmutableList.get(RegularImmutableList.java:67)
 at org.apache.calcite.sql.SqlSplittableAggFunction$AbstractSumSplitter.topSplit(SqlSplittableAggFunction.java:246)
 at org.apache.calcite.rel.rules.AggregateJoinTransposeRule.onMatch(AggregateJoinTransposeRule.java:332)
 at org.apache.calcite.plan.AbstractRelOptPlanner.fireRule(AbstractRelOptPlanner.java:317)
 at org.apache.calcite.plan.hep.HepPlanner.applyRule(HepPlanner.java:556)
 at org.apache.calcite.plan.hep.HepPlanner.applyRules(HepPlanner.java:415)
 at org.apache.calcite.plan.hep.HepPlanner.executeInstruction(HepPlanner.java:252)
 at org.apache.calcite.plan.hep.HepInstruction$RuleInstance.execute(HepInstruction.java:127)
 at org.apache.calcite.plan.hep.HepPlanner.executeProgram(HepPlanner.java:211)
 at org.apache.calcite.plan.hep.HepPlanner.findBestExp(HepPlanner.java:198)
 at org.apache.calcite.test.RelOptTestBase.checkPlanning(RelOptTestBase.java:170)