[jira] Updated: (DERBY-2597) Language result sets should not reuse current isolation level across executions

["Dag H. Wanvik (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DERBY-2597?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dag H. Wanvik updated DERBY-2597:
---------------------------------

    Derby Categories: [Performance]

> 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: SQL
>    Affects Versions: 10.3.1.4
>            Reporter: Knut Anders Hatlen
>            Assignee: Knut Anders Hatlen
>             Fix For: 10.3.1.4
>
>         Attachments: derby-2597-1.diff, derby-2597-1.stat, derby-2597-2.diff, derby-2597-3.diff, derby-2597-3.stat
>
>
> 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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