Richard Kojedzinszky <krichy@tvnetwork.hu> wrote:
> tuning our installation to not to use sequence scans in this case?
Make sure effective_cache_size is set to the sum of shared_buffers
and whatever your OS shows as usable for caching. Try adjusting
cost factors: maybe random_page_cost between 1 and 2, and
cpu_tuple_cost between 0.03 and 0.05.
-Kevin