Thank you Thomas, this was exactly what I was looking for.
On 24.6.2016 0:57, Thomas Munro wrote:
On Fri, Jun 24, 2016 at 4:13 AM, Dusan Milanov <dusanmilanov@xxxxxxxxx> wrote:
Hi,
A question about transactions: does postgres report serialization errors
before a transaction is committed? Obviously, it does on commit, but how
about previous statements? Can there be an ERRCODE_T_R_SERIALIZATION_FAILURE
error as a response to anything else but the commit?
Yes. See src/test/isolation/expected/project-manager.out, which shows
how to reach this error:
postgres=# UPDATE person SET is_project_manager = false WHERE person_id = 1;
ERROR: could not serialize access due to read/write dependencies
among transactions
DETAIL: Reason code: Canceled on identification as a pivot, during write.
HINT: The transaction might succeed if retried.
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