Re: plan time of MASSIVE partitioning ...
Robert Haas <robertmhaas@gmail.com>
From: Robert Haas <robertmhaas@gmail.com>
To: PostgreSQL - Hans-Jürgen Schönig <postgres@cybertec.at>
Cc: pgsql-hackers Hackers <pgsql-hackers@postgresql.org>
Date: 2010-09-03T13:27:15Z
Lists: pgsql-hackers
2010/9/3 PostgreSQL - Hans-Jürgen Schönig <postgres@cybertec.at>: > i tried this one with 5000 unindexed tables (just one col): > > test=# \timing > Timing is on. > test=# prepare x(int4) AS select * from t_data order by id desc; > PREPARE > Time: 361.552 ms > > you will see similar or higher runtimes in case of 500 partitions and a handful of indexes. I'd like to see (1) a script to reproduce your test environment (as Stephen also requested) and (2) gprof or oprofile results. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise Postgres Company