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
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