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https://issues.apache.org/jira/browse/CALCITE-3188?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Danny Chan reassigned CALCITE-3188:
-----------------------------------
Assignee: Danny Chan
> IndexOutOfBoundsException in ProjectFilterTransposeRule when executing SELECT
> COUNT(*)
> --------------------------------------------------------------------------------------
>
> Key: CALCITE-3188
> URL: https://issues.apache.org/jira/browse/CALCITE-3188
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.21.0
> Reporter: Stamatis Zampetakis
> Assignee: Danny Chan
> Priority: Blocker
> Fix For: 1.21.0
>
>
> The exception is raised by many tests in {{DruidAdapterIT}}.
> What they all have in common is a query of the following form:
> {code:java}
> SELECT COUNT(*) FROM ...
> {code}
> where the query projects only a single column.
> The stacktrace for {{DruidAdapterIT#testExpressionsFilterWithExtract}} is the
> following.
> {noformat}
> Caused by: java.lang.RuntimeException: Error while applying rule
> DruidProjectFilterTransposeRule, args
> [rel#226:LogicalProject.NONE.[](input=RelSubset#50),
> rel#83:BindableFilter.BINDABLE.[](input=RelSubset#18,condition==(CAST(+(/(-(EXTRACT(FLAG(MONTH),
> $0), 1), 3), 1)):INTEGER NOT NULL, 1)),
> rel#1:DruidQuery.BINDABLE.[](table=[foodmart,
> foodmart],intervals=[1900-01-09T00:00:00.000Z/2992-01-10T00:00:00.000Z])]
> at
> org.apache.calcite.plan.volcano.VolcanoRuleCall.onMatch(VolcanoRuleCall.java:235)
> at
> org.apache.calcite.plan.volcano.VolcanoPlanner.findBestExp(VolcanoPlanner.java:631)
> at
> org.apache.calcite.tools.Programs.lambda$standard$3(Programs.java:283)
> at
> org.apache.calcite.tools.Programs$SequenceProgram.run(Programs.java:343)
> at org.apache.calcite.prepare.Prepare.optimize(Prepare.java:189)
> at org.apache.calcite.prepare.Prepare.prepareSql(Prepare.java:320)
> at org.apache.calcite.prepare.Prepare.prepareSql(Prepare.java:231)
> at
> org.apache.calcite.prepare.CalcitePrepareImpl.prepare2_(CalcitePrepareImpl.java:637)
> at
> org.apache.calcite.prepare.CalcitePrepareImpl.prepare_(CalcitePrepareImpl.java:501)
> at
> org.apache.calcite.prepare.CalcitePrepareImpl.prepareSql(CalcitePrepareImpl.java:471)
> at
> org.apache.calcite.jdbc.CalciteConnectionImpl.parseQuery(CalciteConnectionImpl.java:229)
> at
> org.apache.calcite.jdbc.CalciteMetaImpl.prepareAndExecute(CalciteMetaImpl.java:550)
> at
> org.apache.calcite.avatica.AvaticaConnection.prepareAndExecuteInternal(AvaticaConnection.java:675)
> at
> org.apache.calcite.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:156)
> ... 28 more
> Caused by: java.lang.IndexOutOfBoundsException: index (0) must be less than
> size (0)
> 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.rel.rules.ProjectFilterTransposeRule.onMatch(ProjectFilterTransposeRule.java:102)
> at
> org.apache.calcite.plan.volcano.VolcanoRuleCall.onMatch(VolcanoRuleCall.java:208)
> ... 41 more
> {noformat}
> It is regression that must be solved before the release.
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