On Tue, May 01, 2012 at 04:34:10PM +0200, Clemens Eisserer wrote:
> select . from table1 ... left outer join table 15 WHERE
> table1.id IN (select id join table16 ... join table20 WHERE
> table20.somevalue=?)
>
> Starting with some amount of joins, the optimizer starts to do quite
>
On Tue, May 01, 2012 at 04:34:10PM +0200, Clemens Eisserer wrote:
> Quite often Hibernate ends up generating queries with a lot of joins
> which usually works well, except for queries which load some
> additional data based on a previous query (SUBSELECT collections),
> which look like:
>
> select
On Tue, Feb 22, 2011 at 10:18:36PM -0500, Robert Haas wrote:
> On Wed, Feb 2, 2011 at 12:20 AM, Noah Misch wrote:
> >> CREATE TABLE account (account_id SERIAL PRIMARY KEY, name CHARACTER VARYING
> >> NOT NULL);
> >> CREATE TABLE foo (account_id INTEGER NOT NULL REFER
On Tue, Feb 01, 2011 at 02:18:37PM -0500, Nikolas Everett wrote:
> Is there an exhaustive list of what takes what locks and how long they last?
This documents which commands take each lock type, but it is not exhaustive:
http://www.postgresql.org/docs/current/interactive/explicit-locking.html
All
