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Date: Wed, 16 Mar 2016 09:54:33 +0000 (UTC)
From: "Aleksei Kovura (JIRA)" <jira@apache.org>
To: derby-dev@db.apache.org
Message-ID: <JIRA.12949796.1457943513000.34005.1458122073496@Atlassian.JIRA>
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Subject: [jira] [Commented] (DERBY-6876) Can't create triggers on a table -
 error 42X94
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    [ https://issues.apache.org/jira/browse/DERBY-6876?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15197119#comment-15197119 ] 

Aleksei Kovura commented on DERBY-6876:
---------------------------------------

Thanks, I figured that much out, but I was hoping for a proper fix - because triggers are cool.

> Can't create triggers on a table - error 42X94
> ----------------------------------------------
>
>                 Key: DERBY-6876
>                 URL: https://issues.apache.org/jira/browse/DERBY-6876
>             Project: Derby
>          Issue Type: Bug
>         Environment: Linux x86_64, Java 1.8.0_74
>            Reporter: Aleksei Kovura
>         Attachments: trigger_bug.zip
>
>
> I previously shared this on dev mailing list - http://thread.gmane.org/gmane.comp.apache.db.derby.devel/115427.
> I'm reworking triggers in my database and getting this message while trying to create one:
> ------------
> Error: StoredPreparedStatement '19ba803c-014e-b216-6d98-00000650b418' does not exist.
> SQLState:  42X94
> ErrorCode: 30000
> ------------
> This database is a couple years old, started out as 10.10.1.1, was upgraded to stable releases as they appeared (10.11.1.1 -> 10.12.1.1). Some DDL was changed in between upgrades, unfortunately I can't track which ones and when.
> SYSCS_UTIL.SYSCS_INVALIDATE_STORED_STATEMENTS() doesn't help.
> I tried my best to create a replicable test case through creating database on earlier versions, upgrading and playing with DDL - no such luck, so I'm attaching compressed database (with data deleted and tables compressed). Bug replication procedure is as follows:
> 1) Unpack attached file (it has a "trigger_bug" root directory);
> 2) Boot the db_trigger database in embedded mode, include "trigger_bug" directory in the classpath - there is one Java class that is referenced in Stored Procedure;
> 3) Try to run this SQL:
> CREATE TRIGGER APP."test"
> AFTER UPDATE OF description ON APP."ACTIONS"
> REFERENCING NEW ROW AS updated_row
> FOR EACH ROW
> UPDATE APP."ACTIONS" SET description = 'testing'
> WHERE id=updated_row.id
> 4) Get a 42X94 error.
> I'm hoping someone with enough knowledge can poke around in system tables and figure out what's going on.


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