Wayne Conrad <wa...@databill.com> wrote:
> select page_number, ps_id, ps_page_id from ps_page where
> ps_page_id in (select ps_page_id from documents_ps_page where
> document_id in (select document_id from temp_doc_ids)) order by
> ps_page_id;
> [estimated rows=34398932; actual rows=5]
> We tried increasing (from 100 to 1,000 and 10,000) the statistics
> targets for each of the indexed columns, one at a time, and
> analyzing the table/column with each change. This had no effect
Ouch.
Out of curiosity, what do you get with?:
explain analyze
select
page_number,
ps_id,
ps_page_id
from ps_page p
where exists
(
select * from documents_ps_page d
where d.ps_page_id = p.ps_page_id
and exists
(select * from temp_document_ids t
where t.document_id = d.document_id)
)
order by ps_page_id
;
-Kevin
--
Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-performance
