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From "Rick Hillegas (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DERBY-5295) Make Derby self-tune the preallocated ranges for identity columns and sequences.
Date Fri, 24 Jun 2011 19:31:48 GMT
Make Derby self-tune the preallocated ranges for identity columns and sequences.
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                 Key: DERBY-5295
                 URL: https://issues.apache.org/jira/browse/DERBY-5295
             Project: Derby
          Issue Type: Improvement
          Components: SQL
            Reporter: Rick Hillegas


Greater throughput can be achieved by configuring how many values Derby preallocates for sequences
and identity columns. It may be possible for Derby to self-tune the length of these preallocated
ranges rather than hardcoding a one-size-fits-all length. The logic would go into the SequenceRange
class. For more discussion of the issues, see DERBY-4437.

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