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From "Dag H. Wanvik (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-3687) Make client driver allow nested savepoints
Date Mon, 02 Jun 2008 23:33:45 GMT

    [ https://issues.apache.org/jira/browse/DERBY-3687?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12601789#action_12601789
] 

Dag H. Wanvik commented on DERBY-3687:
--------------------------------------

I see there are tests in SavepointJDBC30Test.java, cases #17, #18 and #19 and #48, which
test various (illegal) nesting scenarios:

- testNoNestedSavepointsWhenUsingSQL (SQL inside SQL)
- testNoNestedSavepointsInsideJdbcSavepoint (JDBC inside SQL)
- testNoNestedSavepointsInsideSqlSavepoint (SQL inside SQL)
- xtestNestedSavepoints (SQL inside JDBC; not enabled, cf. x in fixture name ?)

I can understand why it is wise to avoid mixing the two savepoint kinds, but can someone enlighten
me as to the rationale for not allowing nesting of SQL savepoints? (keeping in mind that the
standard doesn't dictate this; is this some kind of compatibility decision?)

> Make client driver allow nested savepoints
> ------------------------------------------
>
>                 Key: DERBY-3687
>                 URL: https://issues.apache.org/jira/browse/DERBY-3687
>             Project: Derby
>          Issue Type: Improvement
>          Components: Network Client
>            Reporter: Dag H. Wanvik
>         Attachments: Main.java
>
>
> Currently, only the embedded driver allows nested savepoints, cf. the attached repro.
> In the interest of harmonizing the drivers it would be nice to make the client driver
allow this as well.

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