[jira] [Created] (CALCITE-4345) SUM CASE WHEN without else throws NPE

["Jiatao Tao (Jira)" <ji...@apache.org>]

Jiatao Tao created CALCITE-4345:
-----------------------------------

             Summary: SUM CASE WHEN without else throws NPE
                 Key: CALCITE-4345
                 URL: https://issues.apache.org/jira/browse/CALCITE-4345
             Project: Calcite
          Issue Type: Bug
          Components: core
            Reporter: Jiatao Tao
            Assignee: Jiatao Tao
         Attachments: image-2020-10-19-16-59-44-900.png

Add a test in CsvTest:

 
{code:java}
@Test void testSumCaseWhenWithoutElse() throws SQLException {
  sql("model", "select sum( CASE WHEN empno=10 THEN 1 END ) from EMPS").ok();
}
{code}
Will throw NPE
{code:java}
 Caused by: java.lang.RuntimeException: Error while applying rule AggregateCaseToFilterRule, args [rel#18:LogicalAggregate.NONE.[](input=RelSubset#17,group={},EXPR$0=SUM($0)), rel#16:LogicalProject.NONE.[](input=RelSubset#15,exprs=[CASE(=($0, 10), 1, null:INTEGER)])] Caused by: java.lang.RuntimeException: Error while applying rule AggregateCaseToFilterRule, args [rel#18:LogicalAggregate.NONE.[](input=RelSubset#17,group={},EXPR$0=SUM($0)), rel#16:LogicalProject.NONE.[](input=RelSubset#15,exprs=[CASE(=($0, 10), 1, null:INTEGER)])] at org.apache.calcite.plan.volcano.VolcanoRuleCall.onMatch(VolcanoRuleCall.java:257) at org.apache.calcite.plan.volcano.IterativeRuleDriver.drive(IterativeRuleDriver.java:58) at org.apache.calcite.plan.volcano.VolcanoPlanner.findBestExp(VolcanoPlanner.java:511) at org.apache.calcite.tools.Programs.lambda$standard$3(Programs.java:271) at org.apache.calcite.tools.Programs$SequenceProgram.run(Programs.java:331) at org.apache.calcite.prepare.Prepare.optimize(Prepare.java:166) at org.apache.calcite.prepare.Prepare.prepareSql(Prepare.java:299) at org.apache.calcite.prepare.Prepare.prepareSql(Prepare.java:208) at org.apache.calcite.prepare.CalcitePrepareImpl.prepare2_(CalcitePrepareImpl.java:642) at org.apache.calcite.prepare.CalcitePrepareImpl.prepare_(CalcitePrepareImpl.java:508) at org.apache.calcite.prepare.CalcitePrepareImpl.prepareSql(CalcitePrepareImpl.java:478) at org.apache.calcite.jdbc.CalciteConnectionImpl.parseQuery(CalciteConnectionImpl.java:231) at org.apache.calcite.jdbc.CalciteMetaImpl.prepareAndExecute(CalciteMetaImpl.java:558) at org.apache.calcite.avatica.AvaticaConnection.prepareAndExecuteInternal(AvaticaConnection.java:675) at org.apache.calcite.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:156) ... 63 more Caused by: java.lang.NullPointerException at org.apache.calcite.rex.RexLiteral.intValue(RexLiteral.java:1152) at org.apache.calcite.rel.rules.AggregateCaseToFilterRule.transform(AggregateCaseToFilterRule.java:231) at org.apache.calcite.rel.rules.AggregateCaseToFilterRule.onMatch(AggregateCaseToFilterRule.java:115) at org.apache.calcite.plan.volcano.VolcanoRuleCall.onMatch(VolcanoRuleCall.java:230) ... 77 more
{code}
 

 

 



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