On Thu, Feb 18, 2021 at 10:24:25AM -0700, Michael Lewis wrote:
>   [1]https://www.depesz.com/2010/03/18/profiling-stored-proceduresfunctions/
> 
> Thanks for this reference. I enjoy your blog, but haven't made the time to 
> read all the archives somehow. Stuff doesn't stick very
> well when it isn't yet "needed" info besides.
> I have seen overhead from 'raise notice' in small functions that are 
> sometimes called many thousands of times in a single query, but
> hadn't done the test to verify if the same overhead still exists for raise 
> debug or another level below both client_min_messages
> and log_min_messages. Using your examples, I saw about .006 ms for each call 
> to RAISE DEBUG with a client/log_min as notice/warning.

Sure, this overhead is definitely possible, but kinda besides the point
- there will be some slowdowns in other places, and it will be good to
track them.
That's why I suggested to do it on small sample of data.

Best regards,

depesz



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