Josh Berkus forwards:
> I hope someone can explain what I'm seeing on our system. I've got a
> table with about four million rows in it (see schema below). Almost
> every column has one or two indexes. What I've found is that when I
> issue an update statement to zero out the content of a particul
Folks,
Jozsef is having trouble posting to the list, but he's receiving
messages fine. So reply to the list and not to me. Message follows:
Original Message ---
The original post:
Title: Update touches unrelated indexes!?
Hi Everyone,
I hope someone can explain what I'm seei
"Craig A. James" <[EMAIL PROTECTED]> writes:
> insert into hitlist(p_id, sortorder)
> (select p_id, nextval('hitlist_seq') from
>(select p_id, min(data) as m from c group by p_id order by m);
> Apparently, the sort order returned by the innermost select is NOT
> maintained as you go
"Craig A. James" <[EMAIL PROTECTED]> writes:
> I have a query that needs to run faster, with the obvious solution
> being to add an index. But to confirm this, I ran explain analyze.
> When I run the actual query, it consistently takes 6-7 seconds by the
> wall clock. My application with a "verbo
Here is a question about SQL. I have a one-to-many pair of tables (call them "P" and
"C" for parent and child). For each row of P, there are many rows in C with data, and I
want to sort P on the min(c.data). The basic query is simple:
select p_id, min(data) as m from c group by p_id order b
I have a query that needs to run faster, with the obvious solution being to add an index.
But to confirm this, I ran explain analyze. When I run the actual query, it
consistently takes 6-7 seconds by the wall clock. My application with a
"verbose" mode enabled reports 6.6 seconds consistentl
