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From Geoff hendrey <geoff_hend...@yahoo.com>
Subject Re: serious issue with delete
Date Mon, 02 Feb 2009 15:01:26 GMT
I hadn't been using this property, but setting t to false (which is supposed to be the default)
fixed the delete NPE.

THANKS!!! I was in a real pinch. I'll do some more validation of this later tonight.

“How many legs does a dog have if you call the tail a leg? Four. Calling a tail a leg doesn't
make it a leg.” 
– A. Lincoln

From: Knut Anders Hatlen <Knut.Hatlen@Sun.COM>
To: Derby Discussion <derby-user@db.apache.org>
Sent: Monday, February 2, 2009 1:33:07 AM
Subject: Re: serious issue with delete

Geoff hendrey <geoff_hendrey@yahoo.com> writes:

> Hi All,
> I think I reported it a while back, but it keeps cropping up. This problem
> seems to appear suddenly, on a database that was otherwise working fine, and
> when it happens, all delete operations seem to be permanently broken. I cannot
> delete from any table (or so it seems...I'm pretty tired right now). If it
> matters, those are double underscores in the table name.
> ...
> Caused by: java.sql.SQLException: Java exception: ':
> java.lang.NullPointerException'.
>     at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown
> Source)
>     at
> org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransportAcrossDRDA
> (Unknown Source)
>     ... 39 more
> Caused by: java.lang.NullPointerException
>     at org.apache.derby.impl.sql.execute.NoRowsResultSetImpl.close(Unknown

Hi Geoff,

It looks like you've come across this problem:


(Or a similar issue, possibly the same as DERBY-2353, logged as

The workaround in both cases is to unset derby.language.logQueryPlan.

Hope this helps,

Knut Anders

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