> On Mar 20, 2017, at 6:31 AM, Moreno Andreo wrote:
>
> Hi everyone,
>
>I have my PostgreSQL 9.5 server running on a VM instance on Google Compute
> Engine (Google Cloud Platform) on Debian Jessie (8.3), and I have another
> dedicated VM instance that, every
On Aug 31, 2016, at 2:55 PM, Nicolas Grilly wrote:
>
> It looks like Instagram has been using pg_reorg (the ancestor of pg_repack)
> to keep all likes from the same user contiguous on disk, in order to minimize
> disk seeks.
>
>
On Jan 7, 2016, at 10:32 PM, Sachin Srivastava wrote:
>
>
> Dear John,
>
> We are looking at more like 500-600 connections simultaneously in 1 day and I
> want to say we get 1 to 12000 connections a day per db.
Unless you have 300 cores to service those 500-600
On Sep 15, 2015, at 12:27 AM, Jim Nasby <jim.na...@bluetreble.com> wrote:
>
> On 9/15/15 12:48 AM, Ben Chobot wrote:
>> We're in a situation where we would like to take advantage of the pgpass
>> hostname field to determine which password gets used. For example:
>>
We're in a situation where we would like to take advantage of the pgpass
hostname field to determine which password gets used. For example:
psql -h prod-server -d foo # should use the prod password
psql -h beta-server -d foo # should use the beta password
This would *seem* to be simple, just
> On Sep 6, 2015, at 4:07 AM, Andres Freund wrote:
>
> To me that sounds like the negative impact of transparent hugepages
> being mitigated to some degree by zone reclaim mode (which'll avoid some
> cross-node transfers).
FWIW:
$ cat
Over the last several months, I've seen a lot of grumbling about how
zone_reclaim_mode eats babies, kicks puppies, and basically how you should just
turn it off and live happily ever after. I thought I should add a
counterexample, because that advice has not proven very good for us.
Some facts
On Apr 3, 2014, at 12:47 PM, John R Pierce pie...@hogranch.com wrote:
On 4/3/2014 9:26 AM, Joe Van Dyk wrote:
Related, anyone have any thoughts on using postgresql on Amazon's EC2 SSDs?
Been looking at
On Feb 9, 2014, at 2:48 PM, John Anderson son...@gmail.com wrote:
What I'm wondering is if there is a more denormalized view of this type of
data that would make those of types of queries quicker?
That sounds like a materialized view?
On Dec 9, 2013, at 8:09 AM, Thomas Harold wrote:
On 11/22/2013 5:57 AM, Albe Laurenz wrote:
Kaushal Shriyan wrote:
I have read on the web that Postgresql DB supports replication
across data centers. Any real life usecase examples if it has been
implemented by anyone.
Well, we replicate a
For posterity, it appears my issues were
https://wiki.postgresql.org/wiki/Nov2013ReplicationIssue.
On Nov 4, 2013, at 3:48 PM, Ben Chobot wrote:
Anybody? I've tried this again on another streaming replication server, and
again had pg_toast errors until I re-basebackup'd it. Does it make
drained the clients from
it anyway, so that's not a big deal for a temporary thing.
On Nov 1, 2013, at 1:44 PM, Ben Chobot wrote:
I've got a bunch of independent database clusters, each with a couple of
streaming replication slaves. I'm starting to upgrade them to 9.1.10, but on
3 of the 3 I've
I've got a bunch of independent database clusters, each with a couple of
streaming replication slaves. I'm starting to upgrade them to 9.1.10, but on 3
of the 3 I've tried so far, this has somehow resulted in data corruption. I'm
hoping it was the upgrade itself that caused the corruption,
On Jul 28, 2013, at 5:29 PM, Amit Langote wrote:
I think, the WAL recycling on standby names the recycled segments with
the latest timelineID (in this case it's 0x10) which creates WALs that
there shouldn't have been like 0010146A0001 instead of
000F146A0001. This
Anybody?
On Jul 3, 2013, at 3:23 PM, Ben Chobot wrote:
We have an async streaming setup using 9.1.9 and 3 nodes - let's call them A,
B, and C. A is the master, B and C are slaves. Today, A crashed, so we made B
be the master and told C to follow along with the switch by changing
We have an async streaming setup using 9.1.9 and 3 nodes - let's call them A,
B, and C. A is the master, B and C are slaves. Today, A crashed, so we made B
be the master and told C to follow along with the switch by changing the
primary_conninfo in it's recovery.conf, making sure the history
On May 28, 2013, at 2:54 AM, image wrote:
Hello,
On the same station, i have 2 postgresql server: one for my postgis db
(v9.1) and so another installed with opener^7 (9.2). Unfortunalty, i noticed
i'm obliged to stop service for my postgresql postgis (9.1) in order to use
openerp7
On Apr 27, 2013, at 10:40 AM, Yang Zhang wrote:
My question really boils down to: if we're interested in using COW
snapshotting (a common feature of modern filesystems and hosting
environments), would we necessarily need to ensure the data and
pg_xlog are on the same snapshotted volume? If
On Apr 8, 2013, at 2:15 AM, Vincent Veyron wrote:
Could someone explain to me the point of using an AWS instance in the
case of the OP, whose site is apparently very busy, versus renting a
bare metal server in a datacenter?
Well, at least in my experience, you don't go to AWS because the
On Apr 6, 2013, at 6:51 PM, David Boreham wrote:
First I need to say that I'm asking this question on behalf of a friend,
who asked me what I thought on the subject -- I host all the databases
important to me and my livelihood, on physical machines I own outright. That
said, I'm curious
I'm in an unfortunate position of needing to add a unique, not null index to a
very large table with heavy churn. Without having much impact, I can add a NULL
column that reads default values from a sequence for new rows, and then do
batch updates over time to fill in the old values but
On Mar 9, 2013, at 11:54 AM, Paul Jungwirth wrote:
Hello,
I'm running a specialized search engine that indexes a few tens of millions
of web pages, keeping everything in Postgres, and one problem I'm starting to
see is poor cache hit rates. My database has two or three tables just for the
We have a Postgres server (PostgreSQL 9.1.6 on x86_64-unknown-linux-gnu,
compiled by gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3, 64-bit) which does
streaming replication to some slaves, and has another set of slaves reading the
wal archive for wal-based replication. We had a bit of fun yesterday
On Jan 17, 2013, at 10:03 AM, Paul Jungwirth wrote:
Is there any way to determine, by querying pg_index and other pg_* tables,
whether an index was created as `USING something`? I've already got a big
query joining pg_class, pg_index, etc. to pull out various attributes about
the indexes
On Jan 8, 2013, at 2:12 AM, aasat wrote:
Hi,
I want to store clickmap points (X, Y and hits value) for website
I currently have table like this
CREATE TABLE clickmap (
page_id integer,
date date,
x smallint,
y smallint,
hits integer
)
But this generated about 1M rows per
On Dec 11, 2012, at 2:25 AM, Chris Angelico wrote:
On Tue, Dec 11, 2012 at 7:26 AM, Mihai Popa mi...@lattica.com wrote:
Second, where should I deploy it? The cloud or a dedicated box?
Forget cloud. For similar money, you can get dedicated hosting with
much more reliable performance. We've
On Nov 12, 2012, at 7:37 AM, Shaun Thomas wrote:
Hey everyone,
We recently got bit by this, and I wanted to make sure it was known to the
general community.
In new(er) Linux kernels, including late versions of the 2.6 tree, XFS has
introduced dynamic speculative preallocation. What
On Oct 22, 2012, at 6:57 AM, chinnaobi wrote:
Hi Laurenz Albe,
I have tested using cygwin rsync in windows 2008 R2, just after restart the
server.
for 10 GB it took nearly 5 minutes to sync,
for 50 GB it took nearly 30 minutes, -- too long Though there were no big
changes.
My
On Oct 4, 2012, at 1:44 PM, Thalis Kalfigkopoulos wrote:
Hi all.
I'd like to tap into the list's experience regarding the job of a DBA
in general and Pg DBA in particular.
I see that most of the DBA job posts ask for Sr or Ssr which is
understandable given that databases are among a
Today we saw a couple behaviors in postgres we weren't expecting, and I'm not
sure if there's something odd going on, or this is all business as usual and we
never noticed before.
In steady-state, we have a 32-core box with a fair amount of ram acting as a
job queue. It's constantly busy
On Oct 3, 2012, at 11:50 AM, Tom Lane wrote:
Ben Chobot be...@silentmedia.com writes:
4. What might cause autovacuum analyze to make an index perform worse
immediately, when a manual vacuum analyze does not have the same affect? And
I'm not talking about changing things so the planner
In an attempt to get a hackfix for
http://pgfoundry.org/tracker/index.php?func=detailaid=1011203group_id=1000411atid=1376,
I'm wonder if it's true that, when looking at pg_locks, the only pid which
will have virtualxid = '1/1' and virtualtransaction = '-1/0' will be the
bgwriter. That seems
On Aug 7, 2012, at 9:32 AM, Fujii Masao wrote:
On Mon, Aug 6, 2012 at 3:29 AM, Ben Chobot be...@silentmedia.com wrote:
Oh, I would have though that doing a clean shutdown of the old master (step
1) would have made sure that all the unstreamed wal records would be flushed
to any connected
On Aug 4, 2012, at 12:24 PM, Menelaos PerdikeasSemantix wrote:
The following page:
http://www.postgresql.org/about/
mentions some limits but not the following:
[1] maximum number of databases per database server instance
[2] maximum number of schemas per database
Is there empirical
On Aug 5, 2012, at 11:12 AM, Fujii Masao wrote:
On Sat, Jul 28, 2012 at 2:00 AM, Ben Chobot be...@silentmedia.com wrote:
We make heavy use of streaming replication on PG 9.1 and it's been great for
us. We do have one issue with it, though, and that's when we switch master
nodes - currently
Anybody?
On Jul 27, 2012, at 10:00 AM, Ben Chobot wrote:
We make heavy use of streaming replication on PG 9.1 and it's been great for
us. We do have one issue with it, though, and that's when we switch master
nodes - currently, the documentation says that you must run pg_basebackup
We make heavy use of streaming replication on PG 9.1 and it's been great for
us. We do have one issue with it, though, and that's when we switch master
nodes - currently, the documentation says that you must run pg_basebackup on
your old master to turn it into a slave. That makes sense when the
On Jun 29, 2012, at 12:16 PM, Andy Chambers wrote:
I understand that it's possible to promote a hot standby pg server
simply by creating the failover file. In a scenario where there are
multiple standby servers, is it possible to point the other standby
servers to the new master without
On Jun 20, 2012, at 7:43 AM, Emi Lu wrote:
Good morning,
Is there a simply method in psql to format a string?
For example, adding a space to every three consecutive letters:
abcdefgh - *** *** ***
Thanks a lot!
Emi
I'm unaware of such a function (it seems like a generic format()
On Jun 3, 2012, at 10:55 AM, Scott Ribe wrote:
As part of anonymizing some data, I want to do something like:
update foo set bar = (select bar2 from fakes order by random() limit 1);
it may or may not be an option, but update foo set bar=md5(bar) is a pretty
simple way to redact data.
--
On May 22, 2012, at 7:31 AM, farhad koohbor wrote:
My question is that why jasperserver changed its mind to PostGreSQL. Which of
the features of PostGreSQL are powerful than MySQL?
Could you please give me a clue?
Postgres is more SQL-compliant and tends to work better at larger scale than
On May 4, 2012, at 9:30 AM, Rebecca Clarke wrote:
I do not want to touch the pg_hba.conf so I have generated the .pgpass file.
The permissions is set to 600, and I have correctly inputted the details into
.pgpass, there are no leading spaces.
myhostname:myport:*:postgres:mypassword
I'm not seeing anything in the docs, but is there a way in 9.1 to log the size
of the query result in the same way that we can log the duration of the query?
--
Sent via pgsql-general mailing list (pgsql-general@postgresql.org)
To make changes to your subscription:
We have a few daemon process that constantly pull batches of logs from a work
queue and then insert into or update a single table in a single transaction,
~1k rows at a time. I've been told the transaction does nothing other than
insert and update on that table, and I can verify the table in
On Apr 25, 2012, at 12:35 PM, Tom Lane wrote:
Ben Chobot be...@silentmedia.com writes:
We have a few daemon process that constantly pull batches of logs from a
work queue and then insert into or update a single table in a single
transaction, ~1k rows at a time. I've been told
On Apr 25, 2012, at 1:31 PM, Tom Lane wrote:
I don't have all the details in my head, but if you deliberately provoke
a deadlock by making two transactions update the same two rows in
opposite orders, you'll soon find out what it looks like in the log.
Heh, duh. Looks like your first guess
On Apr 25, 2012, at 4:01 PM, Rich Shepard wrote:
The table has a column 'coll_time' of type time without time zone. New
rows for the table are in a .sql file and the time values throw an error at
the colon between hours:minutes. Do time values need to be quoted?
Yes, (date)time values need
On Apr 25, 2012, at 5:17 PM, Janne H wrote:
Hi there!
Today I realised that my knowledge concerning how postgres handles
concurrency is not very good, and its even worse when it comes to using that
knowledge in real-life.
Let me give you an example.
I have this table
create table
On Mar 27, 2012, at 8:25 AM, Welty, Richard wrote:
does anyone have any tips on this? Linux Software Raid doesn't seem to be
doing a very good job here, but i may well have missed something.
iostat -x 5 is your friend. We've been struggling with a similar setup
recently, and the TL;DR
On Mar 19, 2012, at 10:59 AM, Welty, Richard wrote:
i just finished this thread from May of last year, and am wondering if this
still represents consensus thinking about postgresql deployments in the EC2
cloud:
http://postgresql.1045698.n5.nabble.com/amazon-ec2-td4368036.html
Yes, I
On Mar 2, 2012, at 12:58 PM, david.sahag...@emc.com wrote:
Can anybody please point me to where this difference of behavior is
explained/documented ?
Thanks,
-dvs-
-- version = 9.1.3
do $$
declare
v_str char(10);
begin
v_str := 'abc' ;
raise info '%', concat(v_str, v_str) ;
On Feb 29, 2012, at 4:11 AM, Durumdara wrote:
Dear Anybody!
I replace the long question to some shorter:
As I see the PGSQL supports one transaction per connection. Is this
information ok?
Yes, in postgres a connection can support only one transaction.
If you wish to reduce the number
On Feb 29, 2012, at 3:00 PM, Alban Hertroys wrote:
On 29 Feb 2012, at 20:44, Ben Chobot wrote:
As I see the PGSQL supports one transaction per connection. Is this
information ok?
Yes, in postgres a connection can support only one transaction.
A small correction: a connection can
I'm in the process of setting up a 9.1-based SR cluster, and I've got a
question on how failover is expected to work in the case of multiple slaves.
http://www.postgresql.org/docs/9.1/static/warm-standby-failover.html says:
Some people choose to use a third server to provide backup for the new
As I'm sure many people know, check_postgres.pl has a wonderful (if rather
arcane) query to check table bloat, which has been copied all over the
intarwebz. When I try to use this query one one of my databases I'm told my
table (which has had no deletes) is wasting a whole lot of bytes, but no
On Dec 26, 2011, at 8:08 AM, Ben Chobot wrote:
Yesterday I had a problem on a 64-bit 9.1.1 install:
# select version();
version
Yesterday I had a problem on a 64-bit 9.1.1 install:
# select version();
version
On Dec 23, 2011, at 1:58 AM, Clemens Eisserer wrote:
There are about 800mb free space on /, any idea what could be the problem
here?
Could you be running out of file system nodes?
Don't think so - its a standard ext4 filesystem on a flush drive,
nothing special.
Also I've added about
On Dec 7, 2011, at 8:45 AM, akp geek wrote:
Small Clarification. I have gone through the documentation. I did not find
any thing related to start ans stop replication after the replication is setup
1. If I shutdown the primary
2. Shutdown the slave
3. start Primary
4. start slave
Our application has a table that looks like:
create table jobs
(
id int,
first boolean
);
What we need is for the app to be able to shove data into jobs with an assigned
id, and guarantee that first is only true for one id. In other words, we could
easily enforce what we want
On Oct 27, 2011, at 8:44 AM, Tom Lane wrote:
Ben Chobot be...@silentmedia.com writes:
Today I tried to restore a 70GB database with the standard pg_dump -h
old_server ∑ | psql -h new_server ∑ method. I had 100GB set aside for
WAL files, which I figured surely would be enough, because all
On Oct 27, 2011, at 5:13 PM, Simon Riggs wrote:
Some people have asked for the ability to create temp tables on a Hot
Standby server.
I've got a rough implementation plan but it would have some
restrictions, so I would like to check my understanding of the use
case for this feature so I
Today I tried to restore a 70GB database with the standard pg_dump -h
old_server … | psql -h new_server … method. I had 100GB set aside for WAL
files, which I figured surely would be enough, because all of the data,
including indices, is only 70GB. So I was a bit surprised when the restore hung
On Sep 29, 2011, at 4:57 PM, Jason Long wrote:
I thought I had read somewhere that Postges could ignore a join if it
was not necessary because there were no columns from the table or view
selected in the query. Is this possible?
This sounds like incorrect logic to me, so I would be surprised
On Sep 22, 2011, at 2:13 PM, David Johnston wrote:
Hey,
On 9.0.4
I have a database field that stores a timestamp to second+ precision;
however, I want to search against it only to day precision. If I leave the
field in second precision and try to “WHERE field BETWEEN date0 AND
On Sep 21, 2011, at 1:17 PM, Mike Christensen wrote:
So I used to think materialized views in Postgres would be an awesome
feature. That is until I had to endure the hell hole which is Oracle's
implementation.. what a complete joke.. did MS SQL's indexed views do any
better? Hopefully
On Aug 31, 2011, at 10:47 AM, Tom Lane wrote:
Peter Eisentraut pete...@gmx.net writes:
I don't have an answer for you, but this report looks suspiciously
similar to the one I posted the other day at
http://archives.postgresql.org/pgsql-hackers/2011-08/msg01224.php,
which, now that I think
On Aug 31, 2011, at 11:10 AM, Tom Lane wrote:
Ben Chobot be...@silentmedia.com writes:
Tom, if there's anything else we can provide that might you out, let me know.
If you could extract a self-contained test case for the bad estimation,
that would be useful.
OK, we'll pull something
On Aug 31, 2011, at 11:53 AM, Ben Chobot wrote:
On Aug 31, 2011, at 11:10 AM, Tom Lane wrote:
Ben Chobot be...@silentmedia.com writes:
Tom, if there's anything else we can provide that might you out, let me
know.
If you could extract a self-contained test case for the bad estimation
We recently took a copy of our production data (running on 8.4.2), scrubbed
many data fields, and then loaded it onto a qa server (running 8.4.8). We're
seeing some odd planner performance that I think might be a bug, though I'm
hoping it's just idiocy on my part. I've analyzed things and
On Aug 18, 2011, at 5:36 AM, Adarsh Sharma wrote:
Dear All,
I want some views on the below requirements :
1. I have a Postgres DB server with 25 GB database. It has more than 110
tables.
I am using Postgresql 8.3 on a CentOs.
2. I have another system laptop that contains the same
On Jul 26, 2011, at 10:02 AM, salah jubeh wrote:
Hello,
suppose the following scenario
the car speed is 240
the car has an airbag
Here the first value is integer and the second value is boolean. Consider
that I have this table structure
feature (feature id feature name)
car
On Jul 19, 2011, at 6:28 AM, Craig Ringer wrote:
Note that some leaks that are reported are _normal_ in most software. There
is absolutely no harm in not free()ing a structure that's allocated only once
during init and never messed with afterwards. The OS clears the memory
anyway, so
On Jun 1, 2011, at 1:08 AM, Carl von Clausewitz wrote:
Hello Everyone,
I got a new project, with 100 user in Europe. In this case, I need to handle
production and sales processes an its documentations in PostgreSQL with PHP.
The load of the sales process is negligible, but every user
I'm running 9.0.3, and recently started getting temp files being created. This
is a problem because it's making a bunch of dirty buffers that have to be
flushed to disk and my poor little disk isn't up to the task. I'm not sure why
though, because this is the explain verbose for the queries
On May 25, 2011, at 9:31 AM, Ben Chobot wrote:
I'm running 9.0.3, and recently started getting temp files being created.
This is a problem because it's making a bunch of dirty buffers that have to
be flushed to disk and my poor little disk isn't up to the task. I'm not sure
why though
On May 25, 2011, at 2:57 PM, Merlin Moncure wrote:
On Wed, May 25, 2011 at 2:14 PM, Ben Chobot be...@silentmedia.com wrote:
On May 25, 2011, at 9:31 AM, Ben Chobot wrote:
I'm running 9.0.3, and recently started getting temp files being created.
This is a problem because it's making a bunch
On May 25, 2011, at 7:36 PM, Merlin Moncure wrote:
On Wed, May 25, 2011 at 6:44 PM, Ben Chobot be...@silentmedia.com wrote:
Well, the query itself was calling a plpgsql function, and the function
itself was doing:
DECLARE
row formatted_replication_queue%ROWTYPE;
BEGIN
On May 21, 2011, at 8:53 AM, Tom Lane wrote:
Ben Chobot be...@silentmedia.com writes:
We recently had an issue where a misbehaving application was running a long
transaction that modified a bunch of rows, and this was holding up other
transactions that wanted to do similar modifications
We recently had an issue where a misbehaving application was running a long
transaction that modified a bunch of rows, and this was holding up other
transactions that wanted to do similar modifications. No surprising there. But
what I'm unclear of is how this was showing up in pg_locks. The
On Apr 5, 2011, at 7:35 AM, rihad wrote:
No, what I meant was that we're already using ints for a different purpose in
another app on the same server, so I cannot safely reuse them. Aren't
advisory lock ID's unique across the whole server? The sole purpose of the
string ID is to be able
We're considering using postgres as a way to host database services for many,
many independent applications. One obvious way to do this is with schemas,
roles, and proper permissions, but that still leaves open the possibility for
some poorly written application to leave open transactions and
On Mar 18, 2011, at 11:47 AM, Ivan Voras wrote:
On 18/03/2011 19:17, Ben Chobot wrote:
if we're talking an extra 50MB of memory per cluster, that will start to add
up.
Consider this: each such cluster will have:
a) its own database files on the drives (WAL, data - increasing IO)
Oh
On Mar 18, 2011, at 12:34 PM, Nicholson, Brad (Toronto, ON, CA) wrote:
b) its own postgresql processes (many of them) running in memory
I believe this is entirely a function of client connections.
With a single instance, you can use connection pooling to reduce the overall
number of
On Jan 31, 2011, at 7:55 AM, Bryan Murphy wrote:
Last night we were hit by the out of memory killer. Looking at the following
graph, you can clearly see unusual memory growth. This is a database server
running Postgres 9.0.0.
[snip]
Any advice? What should I be looking for?
Any
On Jan 23, 2011, at 3:29 AM, Attila Nagy wrote:
Hello,
I'm looking for a database backend for a dictionary coder project. It would
have three major tasks:
- take a text corpus, get their words and substitute each word by a 64 bit
integer (the word:integer is always constant) and store
On Jan 13, 2011, at 9:34 AM, Allen Chen wrote:
Has anyone else out there noticed inconsistencies in how pgsql formats time
intervals over 1 day?
For example, I have a query that returns a column of intervals and I get
output like this:
30:30:00
1 day 03:02:47
1 day 01:38:34
On Jan 13, 2011, at 11:03 AM, Tom Lane wrote:
If you don't care about that, you can use justify_hours (I think that's
the right function) to smash them to the same thing.
I use justify_hours, and I still get entries like '1 day 35:31:10' intermixed
with the entires I'd expect like '2 days
On Jan 13, 2011, at 1:15 PM, John R Pierce wrote:
On 01/13/11 1:08 PM, Ben Chobot wrote:
On Jan 13, 2011, at 11:03 AM, Tom Lane wrote:
If you don't care about that, you can use justify_hours (I think that's
the right function) to smash them to the same thing.
I use justify_hours, and I
On Dec 7, 2010, at 10:39 AM, Jaiswal Dhaval Sudhirkumar wrote:
Hi List,
What is the best tool of data modeling and ER diagram for PostgreSQL.
http://wiki.postgresql.org/wiki/GUI_Database_Design_Tools
On Nov 30, 2010, at 7:21 AM, Jonathan Vanasco wrote:
on a project, i find myself continually finding the database locked up with
idle in transaction connections
are there any commands that will allow me to check exactly what was going on
in that transaction ?
i couldn't find anything
On Nov 29, 2010, at 12:57 PM, Vick Khera wrote:
On Mon, Nov 29, 2010 at 1:23 PM, Tom Lane t...@sss.pgh.pa.us wrote:
hubert depesz lubaczewski dep...@depesz.com writes:
straced postmaster when the problem was happening, and I was opening new
connections. strace looks like this:
[ backend
On Jul 26, 2010, at 9:09 AM, Gauthier, Dave wrote:
Hi:
Will DB replication be integral in v9? If so, when (approx) will that be out?
I have a need for this functionality to replicate a read-only copy of a DB
where the master and slave are 2 time zones away. Estimating DML traffic,
On Jul 22, 2010, at 4:50 AM, Stefan-Michael Guenther wrote:
Hello,
is it possible to get statistics on the usage of different sql statements,
e.g. how many INSERT or UPDATE statements per day?
log_statement_stats doesn't seem to be the right parameter or I haven't found
the output
Is there any difference between text and varchar data types? (Not
varchar(n), just varchar.) I can't see a different from the manual page, but
I'm wondering about index usage or something similarly subtle.
--
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To make changes to
On Jul 21, 2010, at 9:05 AM, Thom Brown wrote:
On 21 July 2010 16:58, Ben Chobot be...@silentmedia.com wrote:
Is there any difference between text and varchar data types? (Not
varchar(n), just varchar.) I can't see a different from the manual page, but
I'm wondering about index usage
On Jul 13, 2010, at 1:46 PM, Joshua Rubin wrote:
Hi,
I have two tables each with nearly 300M rows. There is a 1:1
relationship between the two tables and they are almost always joined
together in queries. The first table has many columns, the second has
a foreign key to the primary key of
On Jul 8, 2010, at 4:17 PM, Edmundo Robles L. wrote:
Hi!
if a want the first 5,10,N tuples of a query (even without order)
i just have to do a:
select * from table limit 10;
That does not get the first 10 tuples, it merely gets 10 tuples. The database
is free to return whichever
On May 12, 2010, at 9:12 AM, Melvin Davidson wrote:
Can anyone tell me how to measure _actual_ transactions per minute on a
PostgreSQL server. I am not talking about using pgbench, as I am not
interested in determining what is possible, but rather the actual count of
queries / transactions
I have a procedure that queries a table. This should be fast because of an
index, but some index bloat has caused the index to become expensive, and so
the procedure has cached a plan that uses a full table scan. I've since fixed
the index bloat, but the procedure still seems to be doing full
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