Re: [HACKERS] Covering Indexes

2012-08-25 Thread Florian Weimer
* Jeff Janes: I don't see the virtue of this in this case. Since the index is not unique, why not just put the index on (a,b,c,d) and be done with it? AFAICT, SQLite 4 encodes keys in a way that is not easily reversed (although the encoding is injective, so it's reversible in principle).

Re: [HACKERS] TRUE/FALSE vs true/false

2012-08-25 Thread Robert Haas
On Thu, Aug 23, 2012 at 11:01 AM, Tom Lane t...@sss.pgh.pa.us wrote: Bruce Momjian br...@momjian.us writes: On Mon, Aug 20, 2012 at 03:09:08PM -0400, Robert Haas wrote: I think the thing we need to look at is what percentage of our code churn is coming from stuff like this, versus what

Re: [HACKERS] [v9.3] writable foreign tables

2012-08-25 Thread Robert Haas
On Thu, Aug 23, 2012 at 1:10 AM, Kohei KaiGai kai...@kaigai.gr.jp wrote: It is a responsibility of FDW extension (and DBA) to ensure each foreign-row has a unique identifier that has 48-bits width integer data type in maximum. It strikes me as incredibly short-sighted to decide that the row

Re: [HACKERS] temporal support patch

2012-08-25 Thread Robert Haas
On Mon, Aug 20, 2012 at 7:17 PM, David Johnston pol...@yahoo.com wrote: Ideally the decision of whether to do so could be a client decision. Not storing intra-transaction changes is easier than storing all changes. Not really. If you don't care about suppressing intra-transaction changes, you

Re: [HACKERS] temporal support patch

2012-08-25 Thread David Johnston
-Original Message- From: Robert Haas [mailto:robertmh...@gmail.com] Sent: Saturday, August 25, 2012 12:46 PM To: David Johnston Cc: Jeff Davis; Vlad Arkhipov; pgsql-hackers@postgresql.org Subject: Re: [HACKERS] temporal support patch On Mon, Aug 20, 2012 at 7:17 PM, David Johnston

Re: [HACKERS] [v9.3] writable foreign tables

2012-08-25 Thread Kohei KaiGai
2012/8/25 Robert Haas robertmh...@gmail.com: On Thu, Aug 23, 2012 at 1:10 AM, Kohei KaiGai kai...@kaigai.gr.jp wrote: It is a responsibility of FDW extension (and DBA) to ensure each foreign-row has a unique identifier that has 48-bits width integer data type in maximum. It strikes me as

Re: [HACKERS] -Wformat-zero-length

2012-08-25 Thread Bruce Momjian
On Tue, Aug 14, 2012 at 11:54:53PM -0400, Peter Eisentraut wrote: On Tue, 2012-08-14 at 17:56 -0400, Tom Lane wrote: Peter Eisentraut pete...@gmx.net writes: On 8/10/12 7:48 PM, Dimitri Fontaine wrote: What about having single user mode talk fe/be protocol, and talk to it via a UNIX

Re: [HACKERS] pg_stat_replication vs StandbyReplyMessage

2012-08-25 Thread Bruce Momjian
On Thu, Aug 23, 2012 at 12:40:33PM +0200, Magnus Hagander wrote: On Wed, Aug 15, 2012 at 5:39 PM, Bruce Momjian br...@momjian.us wrote: On Mon, Aug 15, 2011 at 01:03:35PM +0200, Magnus Hagander wrote: The pg_stat_replication view exposes all the fields in StandbyReplyMessage *except* for

Re: [HACKERS] timestamptz parsing bug?

2012-08-25 Thread Bruce Momjian
On Wed, Aug 15, 2012 at 05:29:26PM -0400, Bruce Momjian wrote: I assume we want to apply this patch based on discussion that we should allow a wider range of date/time formats. Applied, thanks. --- On Mon, Aug 29,

Re: [HACKERS] PATCH: pgbench - random sampling of transaction written into log

2012-08-25 Thread Jeff Janes
On Fri, Aug 24, 2012 at 2:16 PM, Tomas Vondra t...@fuzzy.cz wrote: Hi, attached is a patch that adds support for random sampling in pgbench, when it's executed with -l flag. You can do for example this: $ pgbench -l -T 120 -R 1 db and then only 1% of transactions will be written into the

Re: [HACKERS] psql \set vs \copy - bug or expected behaviour?

2012-08-25 Thread Bruce Momjian
On Fri, Aug 17, 2012 at 02:01:25PM -0400, Bruce Momjian wrote: On Fri, Aug 17, 2012 at 06:55:14PM +0100, Richard Huxton wrote: Well, it'd be nice to allow substitution there ... What we can't easily do is to allow quotes to prevent variable substitution in these whole-line commands

Re: [HACKERS] PATCH: pgbench - random sampling of transaction written into log

2012-08-25 Thread Tomas Vondra
On 26.8.2012 00:19, Jeff Janes wrote: On Fri, Aug 24, 2012 at 2:16 PM, Tomas Vondra t...@fuzzy.cz wrote: Hi, attached is a patch that adds support for random sampling in pgbench, when it's executed with -l flag. You can do for example this: $ pgbench -l -T 120 -R 1 db and then only 1%

Re: [HACKERS] Timing overhead and Linux clock sources

2012-08-25 Thread Bruce Momjian
On Mon, Aug 20, 2012 at 03:11:51PM -0400, Robert Haas wrote: On Thu, Aug 16, 2012 at 10:28 PM, Bruce Momjian br...@momjian.us wrote: FYI, I am planning to go ahead and package this tool in /contrib for PG 9.3. Isn't this exactly what we already did, in 9.2, in the form of

Re: [HACKERS] psql output locations

2012-08-25 Thread Bruce Momjian
On Fri, Aug 17, 2012 at 12:28:58PM -0400, Bruce Momjian wrote: On Fri, Aug 17, 2012 at 12:22:38PM -0400, Alvaro Herrera wrote: Excerpts from Bruce Momjian's message of vie ago 17 11:17:58 -0400 2012: On Wed, Dec 14, 2011 at 10:57:25AM -0500, Robert Haas wrote: On Wed, Dec 14, 2011 at

Re: [HACKERS] Replication timeout units

2012-08-25 Thread Bruce Momjian
On Tue, Dec 20, 2011 at 11:34:25AM -0600, Kevin Grittner wrote: Peter Geoghegan pe...@2ndquadrant.com wrote: Magnus Hagander mag...@hagander.net wrote: from postgresql.conf.sample: #replication_timeout = 60s # in milliseconds; 0 disables Seconds or milliseconds? I would suggest

Re: [HACKERS] Standalone synchronous master

2012-08-25 Thread Bruce Momjian
On Tue, Jan 3, 2012 at 09:22:22PM -0500, Robert Haas wrote: On Tue, Dec 27, 2011 at 6:39 AM, Alexander Björnhagen alex.bjornha...@gmail.com wrote: And so we get back to the three likelihoods in our two-node setup : 1.The master fails  - Okay, promote the standby 2.The standby fails