Re: [GENERAL] Is is safe to use SPI in multiple threads?

On Fri, Dec 09, 2016 at 02:37:58PM -0800, Andres Freund wrote:
> On 2016-12-09 16:52:05 +0800, Qiu Xiafei wrote:
> > 1. Is there a way to use SPI in multi-thread style?
>
> No.
>
> > 2. Another option is to use libpq, like normal clients do. Is libpq as
> > efficient as SPI?
>
> No.

To give more details here, Postgres relies heavily on the fact that sessions
working in parallel on the backend should be done in separate processes,
like for transaction or snapshot handling.
--
Michael