Re: [BUGS] BUG #7766: Running a DML statement that affects more than 4 billion rows results in an exception

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От Dave Cramer
Тема Re: [BUGS] BUG #7766: Running a DML statement that affects more than 4 billion rows results in an exception
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Msg-id CADK3HH+JgxrrT7K7tbyHLT0pqqnmqQNoPC6keHV3uChRq1ah4w@mail.gmail.com
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Ответ на Re: [BUGS] BUG #7766: Running a DML statement that affects more than 4 billion rows results in an exception  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: [BUGS] BUG #7766: Running a DML statement that affects more than 4 billion rows results in an exception  (Tom Lane <tgl@sss.pgh.pa.us>)
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Thanks Tom.

So an unsigned long won't fit inside a java long either, but hopefully it will never be necessary. That would be a huge number of changes.

Dave

Dave Cramer

dave.cramer(at)credativ(dot)ca
http://www.credativ.ca



On Fri, Dec 21, 2012 at 11:47 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
zelaine@amazon.com writes:
> The following bug has been logged on the website:
> Bug reference:      7766
> Logged by:          Zelaine Fong
> Email address:      zelaine@amazon.com
> PostgreSQL version: 8.4.0
> Operating system:   Linux
> Description:

> The updateCount field in the ResultHandler interface in Java is defined as
> an int rather than long.  Therefore, if you prepare and execute an update,
> delete, or insert statement that affects more than 2^32 rows, you will get
> the following exception:

> Unable to interpret the update count in command completion tag

Forwarding this to pgsql-jdbc list.  FWIW, guys, the backend currently
thinks that execution counts are unsigned ints.  So I surmise that the
problematic update count was actually between 2^31 and 2^32.  We might
get around to changing it to unsigned long someday ...

                        regards, tom lane


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