Hi Scott,
> Remember, alter table statements require a full table lock. So if that
> transaction (including your update statements) doesn't end somehow (commit,
> rollback) then all other connections looking at that table will wait.
> Look at the pg_stat_activity and pg_locks views.
Thanks,
Hi,
I have an application that gathers data in a table (who doesn't around
here? ;-) ). The behaviour is roughly as follows:
- on any single day, a lot of information is inserted. Inserts are more
or less in order of increasing timestamp; there may be inserts for data
as far back as an hour or t
In article ,
Scott Marlowe writes:
> Do you mean when the table was modified (i.e. alter table add column)
> or when the data in the table was changed? If it's when the table was
> changed, the easiest way is to store that in the comment for the table
> whenever you alter it.
Highly interesting
On Wed, Oct 21, 2009 at 3:05 AM, stefan wrote:
>
>
>
> Thanks, you were right, I added an additional commit which solved the
> problem. The hint was that the pg_lock view contained a lock entry which
> said granted "No".
>
> This raises though the question of isolation level, afaik postgres defau
Harald Fuchs writes:
> Highly interesting. I put an "EXECUTE 'COMMENT ON TABLE ...'" into an
> AFTER INSERT OR UPDATE OR DELETE trigger, and this indeed works. Does
> anyone see a drawback in modifying a table comment very often?
As long as pg_description gets vacuumed or autovacuumed often eno
Hi everybody,
Is it possible to have psql ignore the line I am typing?
That is, similar to '#' with unix shell. What I would
like is to document my interaction with psql. If an
exclamation mark were a comment character, I may type
something like:
silver=# ! I need to find out if data tagged as
On Wed, 2009-10-21 at 17:39 -0700, Tena Sakai wrote:
> Hi everybody,
>
> Is it possible to have psql ignore the line I am typing?
> That is, similar to '#' with unix shell. What I would
> like is to document my interaction with psql. If an
> exclamation mark were a comment character, I may type
On Wed, Oct 21, 2009 at 6:39 PM, Tena Sakai wrote:
> Hi everybody,
>
> Is it possible to have psql ignore the line I am typing?
> That is, similar to '#' with unix shell.
>
I believe the standard "--" remainder of line SQL comment glyph will work,
as should the C-style "/* ... */" block comment
Thank you Joshua!
> I believe -- will do what you like;
It sure does.
Regards,
Tena Sakai
tsa...@gallo.ucsf.edu
-Original Message-
From: Joshua D. Drake [mailto:j...@commandprompt.com]
Sent: Wed 10/21/2009 5:41 PM
To: Tena Sakai
Cc: pgsql-admin@postgresql.org
Subject: Re: [ADMIN] Is it
Thank you, Rosser.
It is interesting to note that -- and "/* ... */"
have slightly different behavior. Former is much
like # in shell or // in some programming languages,
while the latter shows multi-line propensity.
Regards,
Tena Sakai
tsa...@gallo.ucsf.edu
-Original Message-
From: Ro
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