[jira] [Created] (UIMA-3413) improve remove-from-index performance

["Marshall Schor (JIRA)" <de...@uima.apache.org>]

Marshall Schor created UIMA-3413:
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             Summary: improve remove-from-index performance
                 Key: UIMA-3413
                 URL: https://issues.apache.org/jira/browse/UIMA-3413
             Project: UIMA
          Issue Type: Improvement
          Components: Core Java Framework
    Affects Versions: 2.4.2SDK
            Reporter: Marshall Schor
            Assignee: Marshall Schor
            Priority: Minor
             Fix For: 2.5.0SDK


Although UIMA-2434 improved time to remove from a sorted index, removal time from bag indexes is still likely to be order(number-of-elements that are in the index), because a sequential scan is done.  The ordering of elements in bag indexes is somewhat likely to ordered in ascending fs heap index order.  This can be exploited to improve the performance of remove-from-index.



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