[teiid-issues] [JBoss JIRA] Created: (TEIID-1473) Don't batch more rows than is needed when query contains limit but translator does not support limit

[Howard Abrams (JIRA)]

Don't batch more rows than is needed when query contains limit but translator does not support limit
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                 Key: TEIID-1473
                 URL: https://issues.jboss.org/browse/TEIID-1473
             Project: Teiid
          Issue Type: Enhancement
            Reporter: Howard Abrams
            Assignee: Steven Hawkins
            Priority: Minor


Teiid shouldn't try to batch more rows than is needed when query contains limit and translator does not support limit.


For example, say there is a translator that exposes a table "A", but does not support limit.

select * from A limit 2

will currently select an entire batch of rows (1024?) from A, instead of just stopping after 2 rows.

Likewise, if the translator supports neither offset nor limit, and the query contains both, Teiid should not try to batch more that (offset + limit) rows.

This is marked as "Minor" because the workaround of naively supporting limit and offset within a translator is not too hard.


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