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https://issues.apache.org/jira/browse/CALCITE-2108?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Drew Foulks updated CALCITE-2108:
---------------------------------
Reporter: Jing Zhang (was: Jing Zhang)
> AggregateJoinTransposeRule fails when process aggregateCall above
> SqlSumEmptyIsZeroAggFunction without groupKeys
> ----------------------------------------------------------------------------------------------------------------
>
> Key: CALCITE-2108
> URL: https://issues.apache.org/jira/browse/CALCITE-2108
> Project: Calcite
> Issue Type: Bug
> Reporter: Jing Zhang
> Assignee: Julian Hyde
> Priority: Major
> Fix For: 1.16.0
>
>
> {code}
> final HepProgram preProgram = new HepProgramBuilder()
> .addRuleInstance(AggregateProjectMergeRule.INSTANCE)
> .build();
> final HepProgram program = new HepProgramBuilder()
> .addRuleInstance(AggregateReduceFunctionsRule.INSTANCE)
> .addRuleInstance(AggregateJoinTransposeRule.EXTENDED)
> .build();
> final String sql = "select sum(sal)\n"
> + "from (select * from sales.emp where empno = 10) as e\n"
> + "join sales.dept as d on e.job = d.name";
> {code}
> AggregateJoinTransposeRule fails when run the above sql, the exception is as
> following.
> {code}
> java.lang.AssertionError: type mismatch:
> aggCall type:
> INTEGER NOT NULL
> inferred type:
> INTEGER
> at org.apache.calcite.util.Litmus$1.fail(Litmus.java:31)
> at org.apache.calcite.plan.RelOptUtil.eq(RelOptUtil.java:1838)
> at
> org.apache.calcite.rel.core.Aggregate.typeMatchesInferred(Aggregate.java:428)
> at org.apache.calcite.rel.core.Aggregate.<init>(Aggregate.java:161)
> at
> org.apache.calcite.rel.logical.LogicalAggregate.<init>(LogicalAggregate.java:65)
> at
> org.apache.calcite.rel.logical.LogicalAggregate.create_(LogicalAggregate.java:110)
> at
> org.apache.calcite.rel.logical.LogicalAggregate.create(LogicalAggregate.java:100)
> at
> org.apache.calcite.rel.core.RelFactories$AggregateFactoryImpl.createAggregate(RelFactories.java:213)
> at org.apache.calcite.tools.RelBuilder.aggregate(RelBuilder.java:1267)
> at org.apache.calcite.tools.RelBuilder.aggregate(RelBuilder.java:1825)
> at
> org.apache.calcite.rel.rules.AggregateJoinTransposeRule.onMatch(AggregateJoinTransposeRule.java:337)
> {code}
> *Notes*: This is different with the issue referred in
> https://issues.apache.org/jira/browse/CALCITE-2105. This question caused by
> the SqlSplittableAggFunction of SqlSumEmptyIsZeroAggFunction is SumSplitter.
> If groupByKeys is empty, the aggregateCalls returnTypes of Sum is nullable,
> while the returnTypes of Sum0 is not nullable.
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