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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-assert.stat
derby-2493-assert.diff
Attaching patch (derby-2493-assert) which creates a new assert method
JDBC.assertUnorderedResultSet() which is similar to assertFullResultSet() only
that it doesn't care about the order of the result set. Also made two test
cases (one in DistinctTest and one in ResultSetsFromPreparedStatementTest) use
the new method to prevent them from failing when the Hashtable in
BackingStoreHashtable is replaced with a HashMap.
> 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-assert.diff, derby-2493-assert.stat
>
>
> 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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