On Jul 14, 2005, at 10:12 PM, John A Meinel wrote:
>
> My biggest question is why the planner things the Nested Loop would be
> so expensive.
> Have you tuned any of the parameters? It seems like something is
> out of
> whack. (cpu_tuple_cost, random_page_cost, etc...)
>
here's some of my postgresql.conf. Feel free to blast me if I did
something idiotic here.
shared_buffers = 50000
effective_cache_size = 1348000
random_page_cost = 3
work_mem = 512000
max_fsm_pages = 80000
log_min_duration_statement = 60000
fsync = true ( not sure if I'm daring enough to run without this )
wal_buffers = 1000
checkpoint_segments = 64
checkpoint_timeout = 3000
#---- FOR PG_AUTOVACUUM --#
stats_command_string = true
stats_row_level = true