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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-6383) Update trigger defined on one column fires on update of other columns
Date Tue, 05 Nov 2013 02:06:19 GMT

    [ https://issues.apache.org/jira/browse/DERBY-6383?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13813557#comment-13813557
] 

ASF subversion and git services commented on DERBY-6383:
--------------------------------------------------------

Commit 1538854 from [~mamtas] in branch 'code/trunk'
[ https://svn.apache.org/r1538854 ]

DERBY-6383(Update trigger defined on one column fires on update of other columns)

Following old harness tests need their master files updated after the code changes for DERBY-6383.
Now the behavior of these master match those of 10.6 codeline where DERBY-6383 regression
does not exist.

> Update trigger defined on one column fires on update of other columns
> ---------------------------------------------------------------------
>
>                 Key: DERBY-6383
>                 URL: https://issues.apache.org/jira/browse/DERBY-6383
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.7.1.4, 10.8.1.2, 10.9.1.0, 10.10.1.1
>            Reporter: Knut Anders Hatlen
>            Assignee: Mamta A. Satoor
>         Attachments: DERBY6383_patch1_diff.txt, DERBY6383_patch2_diff.txt, d6383.sql,
derby_for_Embedded_40Changes10_7testTriggers.log, derby_for_Embedded_40Changes10_9testDisposableStatisticsExplicit.log,
error-stacktrace_for_Embedded_40Changes10_7testTriggers.out, error-stacktrace_for_Embedded_40Changes10_9testDisposableStatisticsExplicit.out,
runall.out
>
>
> I see this problem on 10.8 and higher. To reproduce, create a database with a trigger
like this:
> connect 'jdbc:derby:trigdb;create=true';
> create table t1(x int, y int);
> create table t2(x int, y int);
> create trigger tr after update of x on t1 referencing old table as old insert into t2
select * from old;
> Then run dblook on the database, and you'll see the following output:
> -- ----------------------------------------------
> -- DDL Statements for triggers
> -- ----------------------------------------------
> CREATE TRIGGER "APP"."TR" AFTER UPDATE OF "X", "Y" ON "APP"."T1" REFERENCING OLD_TABLE
AS OLD FOR EACH STATEMENT insert into t2 select * from old;
> Notice that the DDL creates an update trigger for columns X and Y, whereas the original
trigger was defined on column X only.
> I see the expected DDL on 10.7.1.1.



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