On 2012-01-09, 邓尧 <torshie@gmail.com> wrote:
> insert into ACCOUNT(HOME)
> select "v1" as HOME
> where not exists (select 1 from ACCOUNT where HOME =3D "v1")
>
> Surprisingly, I still got the unique constraint violation error, but much
> fewer than before ( only 3 during the last 3 days).
> Any suggestions? Could it be a bug in psycopg2 or postgresql?
No bug, that's ecpected behavior (unless you switch to serializable isolation
level)
when I need to insert if missing and need to avoid all errors I write it like
above but wrap it in a plpgsql function with an exception clause to handle the
error.
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