Stamatis Zampetakis created CALCITE-3188:
--------------------------------------------
Summary: 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
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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