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https://issues.apache.org/jira/browse/DERBY-2597?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Knut Anders Hatlen updated DERBY-2597:
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Attachment: derby-2597-2.diff
Attaching patch which adds a JUnit fixture which tests whether an
UpdateResultSet is able to detect changes in isolation level between
executions. The test passes on trunk, but fails when the patch for DERBY-827 is
applied (it continues with table-level locking after changing isolation level
from serializable to read committed).
> Language result sets should not reuse current isolation level across
> executions
> -------------------------------------------------------------------------------
>
> Key: DERBY-2597
> URL: https://issues.apache.org/jira/browse/DERBY-2597
> Project: Derby
> Issue Type: Sub-task
> Components: Performance, SQL
> Affects Versions: 10.3.0.0
> Reporter: Knut Anders Hatlen
> Assigned To: Knut Anders Hatlen
> Attachments: derby-2597-1.diff, derby-2597-1.stat, derby-2597-2.diff
>
>
> Some of the language result sets cache the current isolation level in their
> constructors. To allow reuse of the result sets, they should check the
> isolation level each time they are opened. Currently, this affects
> HashScanResultSet, TableScanResultSet, LastIndexKeyResultSet and
> UpdateResultSet (and their sub-classes).
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