On Sat, 22 Jul 2006, Alvaro Herrera wrote:
Martin Marques escribió:
Is it posible to get an exclusive (read/write) lock on certain rows? I
don't want to block the whole table, only certain rows, but I want it to
be a read/write lock.
That's what SELECT FOR UPDATE does.
Hi Alvaro,
After the
Martin Marques escribió:
> Is it posible to get an exclusive (read/write) lock on certain rows? I
> don't want to block the whole table, only certain rows, but I want it to
> be a read/write lock.
That's what SELECT FOR UPDATE does.
> AFAIK SELECT FOR UPDATE doesn't help with this.
Why?
--
A
Is it posible to get an exclusive (read/write) lock on certain rows? I
don't want to block the whole table, only certain rows, but I want it to
be a read/write lock.
AFAIK SELECT FOR UPDATE doesn't help with this.
Do I have to go for another aproche?
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Simplified schema:
create table hosts (
id serial primary key,
hostname text not null
);
create table pages (
id serial primary key,
hostid int not null references hosts (id),
url text not null,
unique (hostid, url)
);
create table page_contents (
pageid in
