[ http://issues.apache.org/jira/browse/DERBY-1554?page=all ]
V.Narayanan updated DERBY-1554:
-------------------------------
Attachment: DERBY-1554.diff
DERBY-1554.stat
Hi,
If we could avoid calling the setIdentity() function in the
GenericLanguageContext class when we have an multi-row insert the above bug
would be fixed. I tried the same in the above patch with a single line fix and
it seemed to work.
I was going throught the earlier patch I submitted for 353 when I thought this
small fix might resolve this issue. Pls do tell me if you see any problems with
the above fix or if u see any case I might have missed.
Attaching relevant diff and stat files. I tested this patch only using the test
case with this issue. I also tested test cases for 353 and 439.
PLEASE NOTE THAT I HAVE NOT RUN DERBYALL on this patch.
thanx
Narayanan
> 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: 10.2.0.0
>
> Attachments: DERBY-1554.diff, DERBY-1554.stat
>
>
> 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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