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
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