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https://issues.apache.org/jira/browse/CALCITE-3266?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Water Cut Off closed CALCITE-3266.
----------------------------------
Resolution: Not A Bug
> Type mismatch when test sql “select distinct deptno from dept”
> --------------------------------------------------------------
>
> Key: CALCITE-3266
> URL: https://issues.apache.org/jira/browse/CALCITE-3266
> Project: Calcite
> Issue Type: Bug
> Reporter: Water Cut Off
> Priority: Major
> Attachments: image-2019-08-19-20-53-57-276.png,
> image-2019-08-19-20-54-21-347.png
>
>
> h2. *Hi， I don't understand why this happens like this, can someone tell me
> how to solve this and why,thanks a lot.*
>
> Exception in thread "main" java.lang.AssertionError: Type mismatch:Exception
> in thread "main" {color:#FF0000}java.lang.AssertionError: Type
> mismatch:rowtype of new rel:RecordType(INTEGER NOT NULL DEPTNO, BOOLEAN NOT
> NULL i$DEPTNO) NOT NULLrowtype of set:RecordType(INTEGER NOT NULL DEPTNO) NOT
> NULL{color} at org.apache.calcite.util.Litmus$1.fail(Litmus.java:31) at
> org.apache.calcite.plan.RelOptUtil.equal(RelOptUtil.java:1858) at
> org.apache.calcite.plan.volcano.RelSubset.add(RelSubset.java:284) at
> org.apache.calcite.plan.volcano.RelSet.add(RelSet.java:148) at
> org.apache.calcite.plan.volcano.VolcanoPlanner.addRelToSet(VolcanoPlanner.java:1837)
> at
> org.apache.calcite.plan.volcano.VolcanoPlanner.registerImpl(VolcanoPlanner.java:1783)
> at
> org.apache.calcite.plan.volcano.VolcanoPlanner.register(VolcanoPlanner.java:850)
> at
> org.apache.calcite.plan.volcano.VolcanoPlanner.ensureRegistered(VolcanoPlanner.java:872)
> at
> org.apache.calcite.plan.volcano.VolcanoPlanner.ensureRegistered(VolcanoPlanner.java:1958)
> at
> org.apache.calcite.plan.volcano.VolcanoRuleCall.transformTo(VolcanoRuleCall.java:126)
> at
> org.apache.calcite.plan.RelOptRuleCall.transformTo(RelOptRuleCall.java:234)
> at
> org.apache.calcite.rel.convert.ConverterRule.onMatch(ConverterRule.java:141)
> at
> org.apache.calcite.plan.volcano.VolcanoRuleCall.onMatch(VolcanoRuleCall.java:205)
> at
> org.apache.calcite.plan.volcano.VolcanoPlanner.findBestExp(VolcanoPlanner.java:637)
> at calcite.CalciteTest.sqlToRelNode(CalciteTest.java:103) at
> calcite.CalciteTest.main(CalciteTest.java:53)
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