I'm pretty sure this isn't as simple as you think it is, I'd suggest
having a good read of:
https://stackoverflow.com/a/201378/216229
Chris
On 16/11/2017 07:56, Nick Dro wrote:
I beleieve that every information system has the needs to send emails.
Currently PostgreSQL doesn't have a
On 15/03/2017 19:18, Andres Freund wrote:
Hi,
On 2017-03-15 18:29:06 +, Chris Withers wrote:
Shame the decoding has to be done on the server-side rather than the client
side.
Why?
Requiring compiled extensions to be installed on the server is always
going to be a pain, especially
Hi All,
What are the current "best" options for logical replication plugins?
I saw wal2json and one that serialized to protobuf instead, and then of
course there's bottledwater, but none of these smell particularly
production ready.
Shame the decoding has to be done on the server-side rather
Hi All,
Given the following table:
|#createtablething (id serial,tags jsonb);#\d thing
Table"public.thing"Column|Type |Modifiers
+-+id
|integer |notnulldefaultnextval('thing_id_seq'::regclass)tags |jsonb ||
...and the
g2'?'t2val1'
count | tag1
2| {val1,val2,val3}
28 Şub 2017 Sal, 19:22 tarihinde, Chris Withers
<ch...@simplistix.co.uk <mailto:ch...@simplistix.co.uk>> şunu yazdı:
Hi All,
Given the following table:
|#createtablething (id serial,tags jsonb);#\d thing
Ta
Hi All,
Given the following table:
|#createtablething (id serial,tags jsonb);#\d thing
Table"public.thing"Column|Type |Modifiers
+-+id
|integer |notnulldefaultnextval('thing_id_seq'::regclass)tags |jsonb ||
...and the
On 12/12/2016 14:33, Adrian Klaver wrote:
On 12/11/2016 11:34 PM, Chris Withers wrote:
On 01/12/2016 12:12, Francisco Olarte wrote:
On Thu, Dec 1, 2016 at 12:56 PM, Chris Withers
<ch...@simplistix.co.uk> wrote:
So, first observation: if I make room nullable, the exclude
constrain
On 16/08/2016 15:10, Ilya Kazakevich wrote:
An event is a row with a primary key along the lines of (colo, host,
category) and an associated set of tags, where each tag has a type
and a value
(eg: {"color": "red", "owner": "fred", "status": "open"...}).
What about simple table with several
On 01/12/2016 12:12, Francisco Olarte wrote:
On Thu, Dec 1, 2016 at 12:56 PM, Chris Withers <ch...@simplistix.co.uk> wrote:
So, first observation: if I make room nullable, the exclude constraint does
not apply for rows that have a room of null. I guess that's to be expected,
right?
I
Hi All,
Working with the exclude constraint example from
https://www.postgresql.org/docs/current/static/rangetypes.html:
CREATE EXTENSION btree_gist;
CREATE TABLE room_reservation (
room text,
during tsrange,
EXCLUDE USING GIST (room WITH =, during WITH &&)
);
So, first
Hey Tom,
I appreciate you're busy, but did you ever get a chance to look at this?
On 19/09/2016 08:40, Chris Withers wrote:
On 16/09/2016 15:29, Tom Lane wrote:
Chris Withers <ch...@simplistix.co.uk> writes:
On 16/09/2016 14:54, Igor Neyman wrote:
So, what is the value for "en
Hey Tom,
I appreciate you're busy, but did you ever get a chance to look at this?
On 19/09/2016 08:40, Chris Withers wrote:
On 16/09/2016 15:29, Tom Lane wrote:
Chris Withers <ch...@simplistix.co.uk> writes:
On 16/09/2016 14:54, Igor Neyman wrote:
So, what is the value for "en
On 16/11/2016 01:05, Adrian Klaver wrote:
INSERT 0 1
ERROR: insert or update on table "table_one" violates foreign key
constraint "table_one_parent_id_fkey"
DETAIL: Key (parent_id)=(xxx) is not present in table "table_one".
So, the problem appears to be that table_one is self-referential by
Hi All,
I have a database that I want to dump three tables from, for use in
development. They form a subset of the data, so I was dumping like this:
pg_dump thedatabase --inserts -t table_one -t depends_on_table_one -t
depends_on_previous_two > dump.sql
However, when I try to load this
On 16/09/2016 15:29, Tom Lane wrote:
Chris Withers <ch...@simplistix.co.uk> writes:
On 16/09/2016 14:54, Igor Neyman wrote:
So, what is the value for "end ts", when the record is inserted (the range just
started)?
It's open ended, so the period is [start_ts, )
I've not lo
On 16/09/2016 10:26, John R Pierce wrote:
On 9/16/2016 2:23 AM, John R Pierce wrote:
wait, what is a tsrange? the standard textsearch data types in
postgres are tsvector and tsquery,
never mind, I should have known, its a timestamp range. ...
when you do updates, are you changing any
On 16/09/2016 12:00, John R Pierce wrote:
On 9/16/2016 3:46 AM, Chris Withers wrote:
when you do updates, are you changing any of the indexed fields, or
just "value" ?
Yeah, it's a temporal table, so "updates" involve modifying the period
column for a row to set its end ts
Hi All,
I have quite a few tables that follow a pattern like this:
Table "public.my_model"
Column | Type| Modifiers
+---+---
period | tsrange | not null
key| character varying | not null
value | integer |
On 16/09/2016 14:54, Igor Neyman wrote:
-Original Message-
From: pgsql-general-ow...@postgresql.org
[mailto:pgsql-general-ow...@postgresql.org] On Behalf Of Chris Withers
Sent: Friday, September 16, 2016 6:47 AM
To: John R Pierce <pie...@hogranch.com>; pgsql-general@postgres
On 16/09/2016 12:00, John R Pierce wrote:
On 9/16/2016 3:46 AM, Chris Withers wrote:
when you do updates, are you changing any of the indexed fields, or
just "value" ?
Yeah, it's a temporal table, so "updates" involve modifying the period
column for a row to set its end ts
On 16/09/2016 10:26, John R Pierce wrote:
On 9/16/2016 2:23 AM, John R Pierce wrote:
wait, what is a tsrange? the standard textsearch data types in
postgres are tsvector and tsquery,
never mind, I should have known, its a timestamp range. ...
when you do updates, are you changing any
Hi All,
I have quite a few tables that follow a pattern like this:
Table "public.my_model"
Column | Type| Modifiers
+---+---
period | tsrange | not null
key| character varying | not null
value | integer |
Hi All,
What would be the best schema to use when looking to implement an event
stream with tagging and filtering?
An event is a row with a primary key along the lines of (colo, host,
category) and an associated set of tags, where each tag has a type and a
value (eg: {"color": "red",
On 16/08/2016 14:29, Ilya Kazakevich wrote:
Hi,
An event is a row with a primary key along the lines of (colo, host,
category) and an associated set of tags, where each tag has a type and a value
(eg: {"color": "red", "owner": "fred", "status": "open"...}).
What about simple table with
Hi All,
What would be the best schema to use when looking to implement an event
stream with tagging and filtering?
An event is a row with a primary key along the lines of (colo, host,
category) and an associated set of tags, where each tag has a type and a
value (eg: {"color": "red",
On 04/08/2016 00:20, Tom Lane wrote:
Chris Withers <ch...@simplistix.co.uk> writes:
I'm writing some multi-process code in Python and trying to make sure I
open a new connection for each process. Here's the really cut down code:
...
What's really surpising to me is the output on
Hi All,
I'm writing some multi-process code in Python and trying to make sure I
open a new connection for each process. Here's the really cut down code:
"""
import os, time
import psycopg2
from multiprocessing import Pool
def init():
conn = psycopg2.connect("dbname=...host=localhost")
On 09/03/2016 14:53, Adrian Klaver wrote:
On 03/09/2016 05:49 AM, Chris Withers wrote:
Hi All,
Django, a popular python web framework, runs its unit tests by creating
a 'test_'-prefixed database and then dropping it at the end of the test
run.
FYI in Django 1.8+ you can prevent that:
https
Hi All,
Django, a popular python web framework, runs its unit tests by creating
a 'test_'-prefixed database and then dropping it at the end of the test run.
Is there any way I can grant a user in postgres the ability only to
create a database of a particular name?
cheers,
Chris
--
Sent
Hi All,
So, I have a table that looks like this:
CREATE TABLE config (
region varchar(10),
name varchar(10),
value varchar(40)
);
Another looks like this:
CREATE TABLE tag (
host varchar(10),
Hi All,
I hope this is quite a simple one...
I have a fixtures table containing home_club and away_club, and I'd like
to select the distinct list of clubs contained in all rows but in either
the home_club or away_club columns.
How would I do that?
thanks for the help!
Chris
--
Sent
On 08/12/2015 11:51, David Rowley wrote:
On 9 December 2015 at 00:44, Chris Withers <ch...@simplistix.co.uk
<mailto:ch...@simplistix.co.uk>> wrote:
Hi All,
I hope this is quite a simple one...
I have a fixtures table containing home_club and away_club, and
I'd li
Hi All,
What's the default contents of pg_hba.conf that postgres ships with?
I've been to it contains 'trust' for all local connections.
Is this wise? Anyone who can get a shell on your database server can
connect to any database as any user?
cheers,
Chris
--
Sent via pgsql-general
On 23/11/2015 10:33, paramjib baruah wrote:
I am trying to check current running sql queries in postgres through
pg_stat_activity .However, in the current_query column I could see
only "IDLE" . I am not able to see the query .
That would suggest no query is running, what suggests to you that
Hi All,
I wondered if any of you could recommend best practices for using a
postgres table as a queue. Roughly speaking, 100-200 workers will vomit
rows and rates of a few hundres per second into the table leaving the
status as new and then as many workers as needed to keep up with the
load
On 03/08/2015 08:40, Jony Cohen wrote:
Servers now days reach very impressive write speeds and at rather low
prices - it's simpler to split the write to 2 tables on different
tablespaces/devices than 2 servers.
This raises an interesting question: can a child table be in a different
tablespace
On 04/08/2015 09:11, Seref Arikan wrote:
I work in healthcare and patient centric records let me consider
multiple servers for lots and lots of patients. The
engineering team
from instagram has been sharing their experience with
postgres, which is
On 03/08/2015 08:34, Seref Arikan wrote:
At what point does postgres stop scaling?
What happens when the computational load no longer fits on one
machine? What are the options then?
I think it is hard to come up with blanket responses to generic
questions such as What happens
Hi All,
I'm curious if there are recommendations for scaling postgres to what,
for me, seems like a lot of data...
The app in question currently writes around 1.5 billion rows into a
table before rolling them up into tables that have a few million roll up
rows each. That 1.5 billion row
On 03/08/2015 08:15, Jony Cohen wrote:
SSD disks are cheep these days but they don't like repeated
writes/deletes so it might cause problems down the line (hence my
first RAM recommendation)
as for keeping the raw data - you could easily do it if you use
partitions, if you have daily
On 24/07/2015 22:51, Jeff Janes wrote:
starting vacuum...end.
transaction type: TPC-B (sort of)
scaling factor: 1
This is your problem. There is only one row in the pgbench_branch
table, and every transaction has to update that one row. This is
inherently a seriaized event.
On 24/07/2015 19:21, Jan Lentfer wrote:
I've been doing some lightweight load testing with
“pgbench -c8 -j8 -T10”
When run locally on the postgres server I've testing, this gives
around 5000tps
When I do it from a server that has a 13ms ping latency, it drops to
37tps.
This is using the
Hi all,
I've been doing some lightweight load testing with
“pgbench -c8 -j8 -T10”
When run locally on the postgres server I've testing, this gives around
5000tps
When I do it from a server that has a 13ms ping latency, it drops to 37tps.
This is using the default pgbench script, is it to be
Hi All,
I installed postgres from the enterprisedb-maintained one-click
installer at http://www.postgresql.org/download/macosx.
However, it starts automatically when the machine boots up, and I'd like
it only to start when I manually start it.
I've found an entry in launchd:
$ sudo
Naoko Reeves wrote:
Try check this directory: Library: StartupItems: postgres-plus-8.xx
there should be script to start automatically.
/Library/StartupItems is empty.
I think putting stuff in there is an old-fashioned way of doing things
that went out with Mac OS X 10.4, and I'm glad to say
Dave Page wrote:
On Mon, Jan 4, 2010 at 1:38 PM, Chris Withers ch...@simplistix.co.uk wrote:
Naoko Reeves wrote:
Try check this directory: Library: StartupItems: postgres-plus-8.xx
there should be script to start automatically.
/Library/StartupItems is empty.
I think putting stuff
Dave Page wrote:
Iirc, you have to change:
keyRunAtLoad/key
true/
to
keyRunAtLoad/key
false/
I feel slightly stupid asking this, but this is a Mac, surely there's
some pretty shiny GUI for editing things like this?
(even Windows has the Services stuff in
Sachin Srivastava wrote:
Iirc, you have to change:
keyRunAtLoad/key
true/
to
keyRunAtLoad/key
false/
Sachin; can you confirm please?
Yes. Though the daemon is loaded during startup.
Will setting RunAtLoad to false not stop that?
Chris
--
Simplistix -
Sachin Srivastava wrote:
Will setting RunAtLoad to false not stop that?
RunAtLoad = false means, the daemon is loaded not executed/launched. If
you dont want it to load at system startup. Remove the plist from that
directory. (i.e. /Library/LaunchDaemons)
I don't want postgres to start on
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