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From "A B (JIRA)" <derby-...@db.apache.org>
Subject [jira] Created: (DERBY-388) Intermittent failures when executing UPDATE trigger statements
Date Thu, 23 Jun 2005 05:21:10 GMT
Intermittent failures when executing UPDATE trigger statements

         Key: DERBY-388
         URL: http://issues.apache.org/jira/browse/DERBY-388
     Project: Derby
        Type: Bug
    Reporter: A B
 Assigned to: A B 
     Fix For:

If I define an UPDATE trigger and then I repeatedly perform a table update that fires the
trigger over many rows, I occasionally see intermittent failures of two kinds: 1) a null pointer
exception, and/or 2) a syntax error.

The NPE stack trace is this:

The syntax error stack trace is this:

In both cases, it looks like the error happens when Derby decides (internally) to recompile
the trigger-action statement in the middle of trigger processing--depending on the state of
the underlying Statement object that performs the trigger action, the result will be an NPE
or a syntax error.

I'm working on writing up a simplified reproduction and will post soon...

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