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https://issues.apache.org/jira/browse/DERBY-2493?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Knut Anders Hatlen updated DERBY-2493:
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Attachment: derby-2493-hashtable.diff
derby-2493-hashtable.diff replaces the Hashtable in BackingStoreHashtable with
a HashMap. Derbyall and suites.All ran successfully (except the tests that also
fail in the Tinderbox).
> Use unsynchronized collections in BackingStoreHashtable
> -------------------------------------------------------
>
> Key: DERBY-2493
> URL: https://issues.apache.org/jira/browse/DERBY-2493
> Project: Derby
> Issue Type: Improvement
> Components: Performance, Store
> Affects Versions: 10.3.0.0
> Reporter: Knut Anders Hatlen
> Assigned To: Knut Anders Hatlen
> Priority: Minor
> Attachments: derby-2493-aggregate.diff, derby-2493-aggregate.stat,
> derby-2493-assert.diff, derby-2493-assert.stat, derby-2493-hashtable.diff
>
>
> BackingStoreHashtable uses a Vector and a Hashtable, but doesn't need the
> synchronization provided by these classes (I think). Replacing them with
> ArrayList and HashMap could improve performance for some kinds of operations.
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