Re: SERIALIZABLE and INSERTs with multiple VALUES - Mailing list pgsql-general

On Wed, Oct 12, 2016 at 2:50 AM, Albe Laurenz <laurenz.albe@wien.gv.at> wrote:
> Kevin Grittner wrote:

>> I don't see that on development HEAD.  What version are you
>> running?  What is your setting for default_transaction_isolation?
>
> The subject says SERIALIZABLE, and I can see it on my 9.5.4 database:

Oh, I see -- it doesn't happen if the row already exists at the
start of the transaction, which it does if you run the OP's entire
sample.  If you skip the transaction in the middle of his sample,
the error occurs.

> test=> CREATE TABLE with_pk (i integer PRIMARY KEY);
> CREATE TABLE
> test=> START TRANSACTION ISOLATION LEVEL SERIALIZABLE;
> START TRANSACTION
> test=> INSERT INTO with_pk VALUES (2), (2) ON CONFLICT DO NOTHING;
> ERROR:  could not serialize access due to concurrent update

Or that, as a nice, self-contained test case.  :-)

--
Kevin Grittner
EDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company