Re: Question on error code selection in conflict detection - Mailing list pgsql-hackers

On Mon, Jun 9, 2025 at 9:45 AM Dilip Kumar <dilipbalaut@gmail.com> wrote:
> I was reviewing the code for conflict reporting and became curious
> about the choice of ERRCODE_T_R_SERIALIZATION_FAILURE. This error code
> typically signifies a serialization failure within a transaction under
> serializable isolation, so its use here for a different type of
> conflict seems somewhat out of place. I did notice its use in other
> contexts for recovery conflicts in physical replication, which also
> struck me as a bit unusual.
>
> Given these observations, I'm wondering if it would be more
> appropriate to introduce a new, more specific error code for this
> purpose?

Makes sense to me. I'm not sure if we should use a new error code or
some other existing one, but conflating other things with serializable
failures seems like a bad plan.

--
Robert Haas
EDB: http://www.enterprisedb.com