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https://issues.apache.org/jira/browse/IGNITE-15980?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aleksey Plekhanov updated IGNITE-15980:
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Labels: calcite3-required (was: calcite2-required calcite3-required)
> Calcite engine. Flaky test SetOpPlannerTest.testSetOpRandom[SetOp = INTERSECT]
> ------------------------------------------------------------------------------
>
> Key: IGNITE-15980
> URL: https://issues.apache.org/jira/browse/IGNITE-15980
> Project: Ignite
> Issue Type: Bug
> Reporter: Aleksey Plekhanov
> Assignee: Aleksey Plekhanov
> Priority: Major
> Labels: calcite3-required
> Time Spent: 10m
> Remaining Estimate: 0h
>
> After Calcite version update test {{SetOpPlannerTest.testSetOpRandom[SetOp =
> INTERSECT]}} become flaky:
> {noformat}
> java.lang.AssertionError: Invalid plan (Unexpected node class
> [node=rel#2245:IgniteSingleIntersect.IGNITE.[].single.one-way.uncorrelated(input#0=IgniteExchange#2243,input#1=IgniteExchange#2244,all=true),
> cls=IgniteReduceIntersect]):
> IgniteSingleIntersect(all=[true]): rowcount = 200.0, cumulative cost =
> IgniteCost [rowCount=600.0, cpu=600.0, memory=2000.0, io=0.0,
> network=2400.0], id = 2245
> IgniteExchange(distribution=[single]): rowcount = 100.0, cumulative cost =
> IgniteCost [rowCount=200.0, cpu=200.0, memory=0.0, io=0.0, network=1200.0],
> id = 2243
> IgniteTableScan(table=[[PUBLIC, RANDOM_TBL1]], requiredColumns=[{0, 1,
> 2}]): rowcount = 100.0, cumulative cost = IgniteCost [rowCount=100.0,
> cpu=100.0, memory=0.0, io=0.0, network=0.0], id = 2210
> IgniteExchange(distribution=[single]): rowcount = 100.0, cumulative cost =
> IgniteCost [rowCount=200.0, cpu=200.0, memory=0.0, io=0.0, network=1200.0],
> id = 2244
> IgniteTableScan(table=[[PUBLIC, RANDOM_TBL2]], requiredColumns=[{0, 1,
> 2}]): rowcount = 100.0, cumulative cost = IgniteCost [rowCount=100.0,
> cpu=100.0, memory=0.0, io=0.0, network=0.0], id = 2213
> {noformat}
> The root cause: There are two methods {{getRowCount}} in {{IgniteMdRowCount}}
> which fits {{IgniteMapIntersect}} relational operator as parameter (one
> accepting {{IgniteSetOp}}, and another from super class accepting
> {{Intersect}}). Runtime code-generator choose random of these methods. In
> last Calcite version row count calculation algorithm of method
> {{getRowCount(Intersect)}} was changed, and if this method is choosen by
> runtime code generator, there is incorrect cost and planner builds incorrect
> plan. In debug mode always correct method ({{getRowCount(IgniteSetOp)}}) is
> choosen.
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