Am 29.06.2006 um 17:17 schrieb Dennis Cote:
Jens Miltner wrote:
Is there any way to improve the ORDER BY performance for joined
queries? From your answer that the intermediate results are
sorted, I take it no index won't ever be used when using ORDER BY
with a join query?
Is there
Am 27.06.2006 um 18:06 schrieb Dennis Cote:
Jens Miltner wrote:
I have a schema similar to this:
CREATE TABLE foo (id integer primary key, name text);
CREATE TABLE bar (id integer primary key, foo_id integer,
something text);
CREATE INDEX bar_idx on bar(foo_id, something);
When I run a
On 6/29/06, Jens Miltner [EMAIL PROTECTED] wrote:
Is there any way to improve the ORDER BY performance for joined
queries? From your answer that the intermediate results are sorted, I
take it no index won't ever be used when using ORDER BY with a join
query?
You can use the explain command
Jens Miltner wrote:
Is there any way to improve the ORDER BY performance for joined
queries? From your answer that the intermediate results are sorted, I
take it no index won't ever be used when using ORDER BY with a join
query?
Is there a way to rewrite the queries so we don't take the
I have a schema similar to this:
CREATE TABLE foo (id integer primary key, name text);
CREATE TABLE bar (id integer primary key, foo_id integer, something
text);
CREATE INDEX bar_idx on bar(foo_id, something);
When I run a query like
SELECT
foo.id AS foo_id,
bar.id AS
On 6/27/06, Jens Miltner [EMAIL PROTECTED] wrote:
When I run a query like
SELECT
foo.id AS foo_id,
bar.id AS bar_id
FROM
bar
LEFT JOIN
foo ON foo.id=bar.foo_id
ORDER BY
bar.something
I think it's using the join first to determine what goes in the
Jens Miltner wrote:
I have a schema similar to this:
CREATE TABLE foo (id integer primary key, name text);
CREATE TABLE bar (id integer primary key, foo_id integer, something
text);
CREATE INDEX bar_idx on bar(foo_id, something);
When I run a query like
SELECT
foo.id AS foo_id,
