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Posted to derby-dev@db.apache.org by "Kathey Marsden (JIRA)" <de...@db.apache.org> on 2006/08/10 15:45:19 UTC

[jira] Resolved: (DERBY-1554) IDENTITY_VAL_LOCAL() returned value is modified incorrectly by a multi-row INSERT statement.

     [ http://issues.apache.org/jira/browse/DERBY-1554?page=all ]

Kathey Marsden resolved DERBY-1554.
-----------------------------------

    Fix Version/s: 10.1.3.2
       Resolution: Fixed

Fixed in 10.1.3.2

Date: Thu Aug 10 06:43:20 2006
New Revision: 430381

URL: http://svn.apache.org/viewvc?rev=430381&view=rev
Log:
DERBY-353 It is desirable to have IDENTITY_VAL_LOCAL() function return last recent user specified value or system generated value for BY DEFAULT identity columns.

Merged from trunk 267331, contributed by V.Narayanan

DERBY-1554 IDENTITY_VAL_LOCAL() returned value is modified incorrectly by a multi-row INSERT statement.

Merged from trunk 429425, contributed by Yip Ng






> IDENTITY_VAL_LOCAL() returned value is modified incorrectly by a multi-row INSERT statement.
> --------------------------------------------------------------------------------------------
>
>                 Key: DERBY-1554
>                 URL: http://issues.apache.org/jira/browse/DERBY-1554
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.2.0.0
>            Reporter: Daniel John Debrunner
>         Assigned To: Yip Ng
>             Fix For: 10.1.3.2, 10.2.0.0
>
>         Attachments: DERBY-1554.diff, DERBY-1554.stat, derby1554trunkdiff01.txt, derby1554trunkdiff02.txt, derby1554trunkstat01.txt, derby1554trunkstat02.txt
>
>
> Changes made in DERBY-353 break the documented behaviour of IDENTITY_VAL_LOCAL(). Now the returned value is modified when a multi-row insert is performed.
> IDENTITY_VAL_LOCAL() should not be updated when this occurs.
> For this script the last value returned should be 2 (as in 10.1) but in 10.2 is 4
> create table ta (a int, b int generated always as identity);
> insert into ta(a) values 100;
> values IDENTITY_VAL_LOCAL();
> insert into ta(a) values 200;
> values IDENTITY_VAL_LOCAL();
> insert into ta(a) values 300,400;
> values IDENTITY_VAL_LOCAL();

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