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From "Daniel John Debrunner (JIRA)" <derby-...@db.apache.org>
Subject [jira] Created: (DERBY-806) One each deleted or updated from a heap row a new RowPosition object is created.
Date Mon, 09 Jan 2006 23:07:48 GMT
One each deleted or updated from a heap row a new RowPosition object is created.
--------------------------------------------------------------------------------

         Key: DERBY-806
         URL: http://issues.apache.org/jira/browse/DERBY-806
     Project: Derby
        Type: Improvement
  Components: Performance, Store  
    Versions: 10.2.0.0    
    Reporter: Daniel John Debrunner
    Priority: Minor


See the new RowPosition in GenericConglomerateController.delete and replace. The fetch methods
also have new RowPosition calls but in general these calls are not made for scans.

Can a single RowPosition object be re-used across the life of the query?

In general Derby should try to avoid creating objects per row in any statement as the gc overhead
when operating on a large number of rows can be high.

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