On 30/06/2023 17:15, Seino Yuki wrote:
> Hi,
>
> When I read the documents and coding of SPI, [1]
> I found that the following the SPI_start_transaction does not support
> transaciton_mode(ISOLATION LEVEL, READ WRITE/READ ONLY) like BEGIN
> command. [2]
> Is there a reason for this?
Per the documentation for SPI_start_transaction that you linked to:
"SPI_start_transaction does nothing, and exists only for code
compatibility with earlier PostgreSQL releases."
I haven't tested it, but perhaps you can do "SET TRANSACTION ISOLATION
LEVEL" in the new transaction after calling SPI_commit() though. Or "SET
DEFAULT TRANSACTION ISOLATION LEVEL" before committing.
--
Heikki Linnakangas
Neon (https://neon.tech)