On 29/05/2016 22:10, Attila Soki wrote: > Hi all, > Hello,
> i am about to begin with postgresql plugin development. >H Currently i'm trying to become somewhat familiar with the postgresql sources. > > Without going too deep into details about the plugin, i want to use > many Oid to pointer relations. > The pointer is a pointer to my own struct (allocated with palloc). > There will be approx. 1000 unique oid/pointer pairs. > > Basically, what i want is, to be able to get the pointer to my struct by Oid. > > Is there is a suitable hashmap or key-value storage solution in the pg code? > if so, please point me to the right part of the source. > Yes, there's an hashtable implementation, see dynahash.c If you want to use that in shared memory in your extension, you can look at the pg_stat_statements extension (look for pgss_hash) for an example. Regards. -- Julien Rouhaud http://dalibo.com - http://dalibo.org -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
