/*
* get_tablespace_page_costs
* Return random and/or sequential page costs for a given tablespace.
*/
void
get_tablespace_page_costs(Oid spcid,
double *spc_random_page_cost,
double *spc_seq_page_cost)
{
TableSpaceCacheEntry *spc = get_tablespace(spcid);
Assert(spc != NULL);
if (spc_random_page_cost)
{
if (!spc->opts || spc->opts->random_page_cost < 0)
*spc_random_page_cost = random_page_cost;
else
*spc_random_page_cost = spc->opts->random_page_cost;
}
if (spc_seq_page_cost)
{
if (!spc->opts || spc->opts->seq_page_cost < 0)
*spc_seq_page_cost = seq_page_cost;
else
*spc_seq_page_cost = spc->opts->seq_page_cost;
}
}
int
get_tablespace_io_concurrency(Oid spcid)
{
TableSpaceCacheEntry *spc = get_tablespace(spcid);
if (!spc->opts || spc->opts->effective_io_concurrency < 0)
return effective_io_concurrency;
else
return spc->opts->effective_io_concurrency;
}
