Iain
Joe's example wasn't excluding partions, as he didn't use a
predicated UNION
ALL view to select from. His queries use an indexed column that allow the
various partitions to be probed at low cost, and he was satisfied
wth that.
Agreed - very very interesting design though.
My point in
On Thu, 16 Sep 2004 20:51:11 -0500, Stephen Crowley
[EMAIL PROTECTED] wrote:
explain analyze select * from history where date='2004-09-07' and
stock='ORCL' LIMIT 10;
- Index Scan using island_history_date_stock_time on
island_history (cost=0.00..183099.72 rows=102166 width=83) (actual
Mischa Sandberg wrote:
In the meantime, what I gather from browsing mail archives is that
postgresql on Solaris seems to get hung up on IO rather than CPU.
Furthermore, I notice that Oracle and now MySQL use directio to bypass
the system cache, when doing heavy writes to the disk; and Postgresql
Ok.. now I ran VACUUM FULL' and things seem to be working as they should..
explain analyze select * from history where date='2004-09-07' and stock='MSFT';
Seq Scan on island_history (cost=0.00..275359.13 rows=292274
width=83) (actual time=50.000..411683.000 rows=265632 loops=1)
Filter:
