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https://issues.apache.org/jira/browse/CALCITE-3052?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16839178#comment-16839178
]
Anton Haidai commented on CALCITE-3052:
---------------------------------------
[~jcamachorodriguez], thank you for your help!
While the error is still reproducible on my environment, I believe, that you
identified the issue correctly because the rule can move through the fixed code
now and it fails much further, here is the stacktrace:
{code}
Caused by: java.lang.ArrayIndexOutOfBoundsException: 3
at
com.google.common.collect.RegularImmutableList.get(RegularImmutableList.java:60)
at org.apache.calcite.rex.RexBuilder.makeInputRef(RexBuilder.java:841)
at
org.apache.calcite.rel.rules.AbstractMaterializedViewRule$3.visitInputRef(AbstractMaterializedViewRule.java:2448)
at
org.apache.calcite.rel.rules.AbstractMaterializedViewRule$3.visitInputRef(AbstractMaterializedViewRule.java:2412)
at org.apache.calcite.rex.RexInputRef.accept(RexInputRef.java:112)
at org.apache.calcite.rex.RexShuttle.apply(RexShuttle.java:277)
at
org.apache.calcite.rel.rules.AbstractMaterializedViewRule.shuttleReferences(AbstractMaterializedViewRule.java:2473)
at
org.apache.calcite.rel.rules.AbstractMaterializedViewRule.access$900(AbstractMaterializedViewRule.java:105)
at
org.apache.calcite.rel.rules.AbstractMaterializedViewRule$MaterializedViewAggregateRule.rewriteView(AbstractMaterializedViewRule.java:1552)
at
org.apache.calcite.rel.rules.AbstractMaterializedViewRule.perform(AbstractMaterializedViewRule.java:522)
at
org.apache.calcite.rel.rules.AbstractMaterializedViewRule$MaterializedViewProjectAggregateRule.onMatch(AbstractMaterializedViewRule.java:1777)
at
org.apache.calcite.plan.volcano.VolcanoRuleCall.onMatch(VolcanoRuleCall.java:208)
{code}
Here is the dump of variables involved:
{code}
queryAggregate.getRowType(): RecordType(VARCHAR team, DOUBLE EXPR$0, BIGINT
EXPR$1, BIGINT EXPR$2, BIGINT EXPR$3, BIGINT EXPR$4)
queryAggregate.getGroupCount(): 1
queryAggregate.getAggCallList(): 5
result.getRowType(): RecordType(VARCHAR team, BIGINT EXPR$1, BIGINT EXPR$2)
topExprs: "$0" "$2" "$3"
expr: "$3"
rewrittenExpr: $4
viewExprs: {$0=[6], $1=[5], $2=[0], $3=[1], $4=[2], $5=[3], $6=[4]}
rewritingMapping: [size=3, sourceCount=7, targetCount=6, elements=[1:2, 2:3,
6:0]]
{code}
> Error while applying rule MaterializedViewAggregateRule(Project-Aggregate):
> ArrayIndexOutOfBoundsException
> ----------------------------------------------------------------------------------------------------------
>
> Key: CALCITE-3052
> URL: https://issues.apache.org/jira/browse/CALCITE-3052
> Project: Calcite
> Issue Type: Bug
> Affects Versions: 1.19.0
> Reporter: Anton Haidai
> Assignee: Jesus Camacho Rodriguez
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> *Materialized views enabled:*
> # {{select avg(grade), count\(*), max(grade), sum(grade), min(grade), team
> from students group by team}}
> # {{select avg(grade), count\(*), max(grade), sum(grade), min(grade), team,
> faculty from students group by faculty, team}},
> *Query:*
> # {{select count\(*), team from students group by team}}
> *Error* (stacktrace is obtained using the current *master* branch:
> "247c7d4f76"):
> {noformat}
> Caused by: java.lang.ArrayIndexOutOfBoundsException: 2
> at
> com.google.common.collect.RegularImmutableList.get(RegularImmutableList.java:60)
> at org.apache.calcite.rex.RexBuilder.makeInputRef(RexBuilder.java:841)
> at
> org.apache.calcite.rel.rules.AbstractMaterializedViewRule$MaterializedViewAggregateRule.rewriteView(AbstractMaterializedViewRule.java:1507)
> at
> org.apache.calcite.rel.rules.AbstractMaterializedViewRule.perform(AbstractMaterializedViewRule.java:522)
> at
> org.apache.calcite.rel.rules.AbstractMaterializedViewRule$MaterializedViewProjectAggregateRule.onMatch(AbstractMaterializedViewRule.java:1776)
> at
> org.apache.calcite.plan.volcano.VolcanoRuleCall.onMatch(VolcanoRuleCall.java:208)
> ... 71 common frames omitted
> {noformat}
> Reproducible only if both Materialization views listed are enabled: any
> single one of these two could be successfully used with the query without any
> errors. Looks like is is reproducible when AbstractMaterializedViewRule is
> trying to rewrite one materialized view using the another materialized view.
> Currently, I'm trying to reproduce the issue in "MaterializationTest":
> without a success so far, I'll update the ticket if I'll find a working way
> to reproduce the issue in the test will be discovered.
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