[teiid-issues] [JBoss JIRA] (TEIID-4626) Add a full snapshot refresh strategy based upon table modifications

Steven Hawkins (JIRA) issues at jboss.org
Wed Feb 22 18:12:00 EST 2017


    [ https://issues.jboss.org/browse/TEIID-4626?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13367801#comment-13367801 ] 

Steven Hawkins commented on TEIID-4626:
---------------------------------------

> On the "LAZY" case, I see that in update/delete case setting value to -1 works, but I am not sure how to handle a "insert" case? any suggestions?

I'm not sure I follow this in the context of this issue - are you talking about implementing row level lazy updates?  For this issue we're not assuming row level tracability and simply tracking any update as a modification.

> Add a full snapshot refresh strategy based upon table modifications
> -------------------------------------------------------------------
>
>                 Key: TEIID-4626
>                 URL: https://issues.jboss.org/browse/TEIID-4626
>             Project: Teiid
>          Issue Type: Enhancement
>          Components: Query Engine
>            Reporter: Steven Hawkins
>            Assignee: Ramesh Reddy
>             Fix For: 9.3
>
>
> using the existing full materialization refresh logic we can trigger a refresh based upon a notion of how dirty a table is based upon a proportion of rows updated to the rows in the table. This would also require some change to the status table to capture the number of transitive row updates.  This could then be hooked up to debezium as the event source.



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