On Thu, Aug 18, 2016 at 4:42 AM, Peter Geoghegan <p...@heroku.com> wrote: > > Does anyone have any ideas on how to: > > 1). Directly address the reform_and_rewrite_tuple() bottleneck. > > and/or: > > 2). Push down some or all of the reform_and_rewrite_tuple() work till > before tuples are passed to the tuplesort. > > "2" would probably make it straightforward to have > reform_and_rewrite_tuple() work occur in parallel workers instead, > which buys us a lot. >
I am not aware what exactly you have in mind to parallelize Cluster command, but anything that is CPU intensive is probably a good bet to push down to workers (provided it is safe). -- With Regards, Amit Kapila. EnterpriseDB: http://www.enterprisedb.com -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
