On 12/18/2017 12:52 PM, Andres Freund wrote:
Just ot make sure: You're saying there's no problem here, and that logical rep is behaving correctly, right?
Correct. I am not sure where the miscommunication was (fully willing to accept it was on my side) but if I update multiple rows in a single statement, all the rows that were modified get replicated. That is the behavior I would have expected.
FWIW, I wonder if we need to add a warning somewhere about FULL replication, given it's essentially O(#changes * #rows) -> O(n^2) for updating the whole table.
The docs do mention it is a performance hit but something a little more "IF YOU DO THIS, BEWARE" may be good.
Thanks, JD -- Command Prompt, Inc. || http://the.postgres.company/ || @cmdpromptinc PostgreSQL centered full stack support, consulting and development. Advocate: @amplifypostgres || Learn: https://postgresconf.org ***** Unless otherwise stated, opinions are my own. *****
