Dilip kumar wrote: > Changes: > 1. In current patch vacuum_one_database (for table list), have the table loop > outside and analyze_stage loop inside, so it will finish > All three stage for one table first and then pick the next table. But > vacuum_one_database_parallel will do the stage loop outside and will call > run_parallel_vacuum, > Which will have table loop, so for one stage all the tables will be vacuumed > first, then go to next stage. > So for merging two function both functions behaviors should be identical, I > think if user have given a list of tables in analyze-in-stages, than doing > all the table > Atleast for one stage and then picking next stage will be better solution so > I have done it that way.
Yeah, I think the stages loop should be outermost, as discussed upthread somewhere -- it's better to have initial stats for all tables as soon as possible, and improve them later, than have some tables/dbs with no stats for a longer period while full stats are computed for some specific tables/database. I'm tweaking your v24 a bit more now, thanks -- main change is to make vacuum_one_database be called only to run one analyze stage, so it never iterates for each stage; callers must iterate calling it multiple times in those cases. (There's only one callsite that needs changing anyway.) > 2. in select_loop > For WIN32 TranslateSocketError function I replaced with > if (WSAGetLastError() == WSAEINTR) > errno == EINTR; > > otherwise I have to expose TranslateSocketError function from socket and > include extra header. Grumble. Don't like this bit, but moving TranslateSocketError to src/common is outside the scope of this patch, so okay. (pg_dump's parallel stuff has the same issue anyway.) In case you're up for doing some more work later on, there are two ideas here: move the backend's TranslateSocketError to src/common, and try to merge pg_dump's select_loop function with the one in this new code. But that's for another patch anyway (and this new function needs a little battle-testing, of course.) > I have tested in windows also its working fine. Great, thanks. -- Álvaro Herrera http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers