[teiid-issues] [JBoss JIRA] (TEIID-3050) allow for more incremental insert with iterator

[Steven Hawkins (JIRA)]

     [ https://issues.jboss.org/browse/TEIID-3050?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steven Hawkins resolved TEIID-3050.
-----------------------------------

    Resolution: Done


Changed the logic to be aware of whether there is an existing transaction or no txn needed to not perform full buffering.  Also in the non-txn scenarios for batch/iterator we'll not perform read/write with some concurrency.

> allow for more incremental insert with iterator
> -----------------------------------------------
>
>                 Key: TEIID-3050
>                 URL: https://issues.jboss.org/browse/TEIID-3050
>             Project: Teiid
>          Issue Type: Enhancement
>      Security Level: Public(Everyone can see) 
>          Components: Misc. Connectors, Query Engine
>            Reporter: Steven Hawkins
>            Assignee: Steven Hawkins
>             Fix For: 8.9
>
>
> The current bulk insert logic assumes that it is avoiding a global transactions by fully reading the results before sending the tuplebuffer iterator to the source for processing, which can then just use a local transaction.  However if we are already operating under a transaction or the user doesn't want a transaction (such as with a staging materialized view load) then the insert should happen more incrementally.



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