[teiid-issues] [JBoss JIRA] (TEIID-5017) More aggressively use enhanced join sorted index to prevent buffering

[Steven Hawkins (JIRA)]

     [ https://issues.jboss.org/browse/TEIID-5017?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steven Hawkins resolved TEIID-5017.
-----------------------------------
    Fix Version/s: 9.3.3
       Resolution: Done


Updated the logic to more aggressively build/use the index.  This could be further refined to skip the intermediate buffering before building the index.

> More aggressively use enhanced join sorted index to prevent buffering 
> ----------------------------------------------------------------------
>
>                 Key: TEIID-5017
>                 URL: https://issues.jboss.org/browse/TEIID-5017
>             Project: Teiid
>          Issue Type: Enhancement
>          Components: Query Engine
>            Reporter: Steven Hawkins
>            Assignee: Steven Hawkins
>             Fix For: 10.0, 9.3.3
>
>
> In some circumstances the cost of buffering the unsorted side to determine the applicability of the index is greater than simply using the index.  The logic should also use a better estimate of the memory footprint of the index - which is only required to hold the depth of tree in memory at one time.



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