On 2019-Dec-09, Ibrar Ahmed wrote:
> Hi,
>
> The memory consumption of VACUUM has some issues and could be improved.
> Some of its limitations are recorded in the comments of the “vacuumlazy.c”
> file. The current design of VACUUM memory usage is that it stores the TID
> in a fixed-size array which is allocated at the start, based upon
> maintenance_work_mem. There are three problems with that design
Did you see this thread?
https://postgr.es/m/CAGTBQpbDCaR6vv9=scXzuT8fSbckf=a3NgZdWFWZbdVugVht6Q@mail.gmail.com
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Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
