[teiid-issues] [JBoss JIRA] (TEIID-2475) The RelationalNode.collectNodeStats is only subtracting out the last node

[Steven Hawkins (JIRA)]

     [ https://issues.jboss.org/browse/TEIID-2475?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steven Hawkins resolved TEIID-2475.
-----------------------------------

    Resolution: Done


updated the logic always compute the the processing time as cumulative minus the child times
                
> The RelationalNode.collectNodeStats is only subtracting out the last node
> -------------------------------------------------------------------------
>
>                 Key: TEIID-2475
>                 URL: https://issues.jboss.org/browse/TEIID-2475
>             Project: Teiid
>          Issue Type: Bug
>          Components: Query Engine
>    Affects Versions: 6.0.0
>            Reporter: Debbie Steigner
>            Assignee: Steven Hawkins
>             Fix For: 8.4
>
>         Attachments: Query_Plan.txt
>
>
> The "Node Cumulative Next Batch Process Time" Statistic
> If you have a look at the explain plan (attached). Following the definition,
> the JoinNode Node Cumulative Next Batch Process Time: 565471. So, it is the summation of AccessNode (Node Process Time: 892860) + DependentAccessNode (Node Process Time: 439) + JoinNode (Node Process Time: 2203120). The summation does not agree. 
>  The RelationalNode.collectNodeStats looks wrong (it's effectively only subtracting out the last node)

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