On Tue, May 30, 2017 at 2:45 AM, Dilip Kumar <dilipbal...@gmail.com> wrote: > On Tue, May 30, 2017 at 1:09 AM, Thomas Munro > <thomas.mu...@enterprisedb.com> wrote: >>> * Perhaps simplehash + an LWLock would be better than dht, but I >>> haven't looked into that. Can it be convinced to work in DSA memory >>> and to grow on demand? > > Simplehash provides an option to provide your own allocator function > to it. So in the allocator function, you can allocate memory from DSA. > After it reaches some threshold it expands the size (double) and it > will again call the allocator function to allocate the bigger memory. > You can refer pagetable_allocate in tidbitmap.c.
That only allows the pagetable to be shared, not the hash table itself. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
