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From "Mamta A. Satoor (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DERBY-5295) Make Derby self-tune the preallocated ranges for identity columns and sequences.
Date Fri, 28 Sep 2012 04:21:08 GMT

     [ https://issues.apache.org/jira/browse/DERBY-5295?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mamta A. Satoor updated DERBY-5295:
-----------------------------------

    Labels: derby_triage10_10  (was: )
    
> Make Derby self-tune the preallocated ranges for identity columns and sequences.
> --------------------------------------------------------------------------------
>
>                 Key: DERBY-5295
>                 URL: https://issues.apache.org/jira/browse/DERBY-5295
>             Project: Derby
>          Issue Type: Improvement
>          Components: SQL
>            Reporter: Rick Hillegas
>              Labels: derby_triage10_10
>
> 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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