On Wed, 03 Nov 2010 13:32:18 -0700
Eric Davies e...@barrodale.com wrote:
On Informix, we were able to take advantage of the VTI (Virtual Table
Interface) feature to support table scans and indexing. (See
http://www.ibm.com/developerworks/data/zones/informix/library/techarticle/db_vti.html
On Thu, Nov 4, 2010 at 6:04 PM, Shigeru HANADA
han...@metrosystems.co.jp wrote:
For example:
* PRIMARY ACCESS_METHOD - HANDLER of FOREIGN DATA WRAPPER
* am_scancost() - FdwRoutine.EstimateCosts()
* am_open() - FdwRoutine.Open()
* am_beginscan() - first call of
On Wed, 2010-11-03 at 21:43 +0100, Jan Urbański wrote:
The validator is ready, once I'm done with the hash tables I'll try to
fix up the error checking (get rid of the global error state) and
finally do what started it all, that is make plpythonu use
subtransactions for SPI and be able to do:
On Thu, 2010-11-04 at 11:46 +0200, Hannu Krosing wrote:
On Wed, 2010-11-03 at 21:43 +0100, Jan Urbański wrote:
The validator is ready, once I'm done with the hash tables I'll try to
fix up the error checking (get rid of the global error state) and
finally do what started it all, that is
On 3 November 2010 09:24, Nicolas Barbier nicolas.barb...@gmail.com wrote:
2010/11/2 Kenneth Marshall k...@rice.edu:
Given that our hash implimentation mixes the input data well (It does.
I tested it.) then a simple rotate-and-xor method is all that should
be needed to maintain all of the
On ons, 2010-11-03 at 14:15 -0700, David E. Wheeler wrote:
/me wants a global $dbh that mimics the DBI interface but just uses
SPI under the hood. Not volunteering, either…
Already exists: DBD::PgSPI. Probably needs lots of updating through.
--
Sent via pgsql-hackers mailing list
Hi all,
Would it be possible (or reasonable) to add support for changing the type of
a column to serial or bigserial (yes, yes, I know they're not actual
types)? In effect this would mean that users who forgot to set up a
sequence could change it's type so that a new implicit sequence will be
On Thu, Nov 04, 2010 at 10:00:40AM +, Dean Rasheed wrote:
On 3 November 2010 09:24, Nicolas Barbier nicolas.barb...@gmail.com wrote:
2010/11/2 Kenneth Marshall k...@rice.edu:
Given that our hash implimentation mixes the input data well (It does.
I tested it.) then a simple
The attached patch is a contrib module to inject a few seconds
delay on authentication failed. It is also a proof of the concept
using the new ClientAuthentication_hook.
This module provides a similar feature to pam_faildelay on
operating systems. Injection of a few seconds delay on
2010/11/4 KaiGai Kohei kai...@kaigai.gr.jp:
The attached patch is a contrib module to inject a few seconds
delay on authentication failed. It is also a proof of the concept
using the new ClientAuthentication_hook.
This module provides a similar feature to pam_faildelay on
operating systems.
On Thu, Nov 4, 2010 at 6:05 AM, Itagaki Takahiro
itagaki.takah...@gmail.com wrote:
2010/11/4 KaiGai Kohei kai...@kaigai.gr.jp:
The attached patch is a contrib module to inject a few seconds
delay on authentication failed. It is also a proof of the concept
using the new
On 04/11/10 14:09, Robert Haas wrote:
On Thu, Nov 4, 2010 at 6:05 AM, Itagaki Takahiro
itagaki.takah...@gmail.com wrote:
2010/11/4 KaiGai Kohei kai...@kaigai.gr.jp:
The attached patch is a contrib module to inject a few seconds
delay on authentication failed. It is also a proof of the concept
On Wed, Nov 3, 2010 at 6:45 PM, Itagaki Takahiro
itagaki.takah...@gmail.com wrote:
On Wed, Nov 3, 2010 at 2:19 AM, Michael Meskes mes...@postgresql.org wrote:
On Mon, Nov 01, 2010 at 12:17:02PM +0900, Itagaki Takahiro wrote:
There are some == true in the codes, but they might not be safe
* Jan Urbański (wulc...@wulczer.org) wrote:
On 04/11/10 14:09, Robert Haas wrote:
Hmm, I wonder how useful this is given that restriction.
As KaiGai mentined, it's more to make bruteforcing difficult (read: tmie
consuming), right?
Which it would still do, since the attacker would be
Hannu Krosing ha...@2ndquadrant.com writes:
Are you sure that having each try/except use a subtransaction is the
right way to do it ?
Actually it is not: what you have to do is use a subtransaction in the
plpy.execute() operation, so that if the called SQL operation fails, you
can clean it up
(2010/11/04 22:05), Itagaki Takahiro wrote:
2010/11/4 KaiGai Koheikai...@kaigai.gr.jp:
The attached patch is a contrib module to inject a few seconds
delay on authentication failed. It is also a proof of the concept
using the new ClientAuthentication_hook.
This module provides a similar
On Thu, Nov 4, 2010 at 6:35 AM, Stephen Frost sfr...@snowman.net wrote:
* Jan Urbański (wulc...@wulczer.org) wrote:
On 04/11/10 14:09, Robert Haas wrote:
Hmm, I wonder how useful this is given that restriction.
As KaiGai mentined, it's more to make bruteforcing difficult (read: tmie
Thom Brown t...@linux.com writes:
Would it be possible (or reasonable) to add support for changing the type of
a column to serial or bigserial (yes, yes, I know they're not actual
types)?
We've looked at that in the past and decided there were enough corner
cases that it wasn't clearly a good
Alvaro Herrera alvhe...@commandprompt.com writes:
FWIW I think you should use getObjectDescription, as in the attached
patch. (Note the patch is incomplete and does not compile because only
one caller to CheckSetNamespace has been fixed).
I had to re-add the object name to the
On 4 November 2010 14:04, Tom Lane t...@sss.pgh.pa.us wrote:
Thom Brown t...@linux.com writes:
Would it be possible (or reasonable) to add support for changing the type
of
a column to serial or bigserial (yes, yes, I know they're not actual
types)?
We've looked at that in the past and
Excerpts from Dimitri Fontaine's message of jue nov 04 11:06:48 -0300 2010:
Alvaro Herrera alvhe...@commandprompt.com writes:
FWIW I think you should use getObjectDescription, as in the attached
patch. (Note the patch is incomplete and does not compile because only
one caller to
Alvaro Herrera alvhe...@commandprompt.com writes:
/* check for duplicate name (more friendly than unique-index failure) */
if (SearchSysCacheExists2(TYPENAMENSP,
CStringGetDatum(name),
ObjectIdGetDatum(nspOid)))
Hmm, this
Thom Brown t...@linux.com writes:
I suspected this may have been discussed previously, I just failed to find
it. And yes, it's purely for simplification, and to auto-clean sequences
when tables are dropped. I didn't think it would be straightforward, but
clearly there are show-stoppers
Excerpts from Dimitri Fontaine's message of jue nov 04 11:06:48 -0300 2010:
Also attached, please find the complete version of ALTER EXTENSION ext
SET SCHEMA name; with support for all contrib extensions. That's the
example that allows to see the API (AlterFooNamespace_oid and _internal
Dimitri Fontaine dimi...@2ndquadrant.fr writes:
Well, I'll go fix as you say, putting the check back into the
callers. That won't help a bit with the code duplication feeling we have
when reading the patch, though. Any idea on this front?
Not having read the patch, but ... the idea that was in
Alvaro Herrera alvhe...@commandprompt.com writes:
1. wouldn't it make more sense to save the extension namespace in the
extension catalog?
I don't think so, because the extension itself is not schema
qualified. What lives in the namespace the extension depends on is not
the extension itself,
On Thu, Nov 4, 2010 at 7:52 AM, Dimitri Fontaine dimi...@2ndquadrant.fr wrote:
What about create_extension_extension instead? I'm not thinking of
something better, bikeshedding is opened.
That doesn't seem very clear... I'm always suspicious of names that
use the same word twice, and in this
Tom Lane t...@sss.pgh.pa.us writes:
Not having read the patch, but ... the idea that was in the back of
my mind was to have a generic AlterObjectNamespace function that
would take parameters approximately like the following:
OID of catalog containing object
Column number of
Robert Haas robertmh...@gmail.com writes:
On Thu, Nov 4, 2010 at 7:52 AM, Dimitri Fontaine dimi...@2ndquadrant.fr
wrote:
What about create_extension_extension instead? I'm not thinking of
something better, bikeshedding is opened.
That doesn't seem very clear... I'm always suspicious of
On Thu, Nov 4, 2010 at 8:18 AM, Dimitri Fontaine dimi...@2ndquadrant.fr wrote:
Robert Haas robertmh...@gmail.com writes:
On Thu, Nov 4, 2010 at 7:52 AM, Dimitri Fontaine dimi...@2ndquadrant.fr
wrote:
What about create_extension_extension instead? I'm not thinking of
something better,
Excerpts from Dimitri Fontaine's message of jue nov 04 11:37:37 -0300 2010:
Alvaro Herrera alvhe...@commandprompt.com writes:
/* check for duplicate name (more friendly than unique-index failure)
*/
if (SearchSysCacheExists2(TYPENAMENSP,
Excerpts from Dimitri Fontaine's message of jue nov 04 11:52:53 -0300 2010:
Alvaro Herrera alvhe...@commandprompt.com writes:
3. Not this patch, but I think using extension as a global variable
name is a bad idea.
What about create_extension_extension instead? I'm not thinking of
Excerpts from Thom Brown's message of jue nov 04 09:05:01 -0300 2010:
This would be instead of having to do:
CREATE SEQUENCE id_stuff_seq;
SELECT setval('id_stuff_seq', (SELECT max(id) FROM stuff))
ALTER TABLE stuff ALTER COLUMN id SET DEFAULT
nextval('id_stuff_seq'::regclass);
On Sat, Sep 18, 2010 at 5:01 PM, Pavel Stehule pavel.steh...@gmail.com wrote:
Hello
who is psycopg maintainer, please? Can somebody explains to me, why
psycopg doesn't support twophase commit still, although some
implementation was done in summer 2008?
Hello Pavel,
Just wanted to warn you
On Thu, Nov 4, 2010 at 03:54, Hannu Krosing ha...@2ndquadrant.com wrote:
try:
plpy.execute(insert into foo values(1))
except plpy.UniqueViolation, e:
plpy.notice(Ooops, you got yourself a SQLSTATE %d, e.sqlstate)
Are you sure that having each try/except use a subtransaction is
Tom Lane t...@sss.pgh.pa.us writes:
Not having read the patch, but ... the idea that was in the back of
my mind was to have a generic AlterObjectNamespace function that
would take parameters approximately like the following:
Please find attached what I came up with, that's the set_schema patch
Alvaro Herrera alvhe...@commandprompt.com writes:
2. I think the guts of AlterExtensionNamespace (the large switch block)
should be elsewhere, probably in alter.c
That's implemented in the alter_extension patch v2, and that's much
better, thanks for your continued input. Please note that it
On Thu, 2010-11-04 at 11:07 -0600, Alex Hunsaker wrote:
On Thu, Nov 4, 2010 at 03:54, Hannu Krosing ha...@2ndquadrant.com wrote:
try:
plpy.execute(insert into foo values(1))
except plpy.UniqueViolation, e:
plpy.notice(Ooops, you got yourself a SQLSTATE %d, e.sqlstate)
Are
On Wed, Oct 20, 2010 at 8:11 PM, Robert Haas robertmh...@gmail.com wrote:
so it's
not exploiting that resource at all. I'm imagining that the kernel of a
snapshot is just a WAL position, ie the end of WAL as of the time you
take the snapshot (easy to get in O(1) time). Visibility tests then
On Nov 4, 2010, at 4:20 AM, Peter Eisentraut wrote:
On ons, 2010-11-03 at 14:15 -0700, David E. Wheeler wrote:
/me wants a global $dbh that mimics the DBI interface but just uses
SPI under the hood. Not volunteering, either…
Already exists: DBD::PgSPI. Probably needs lots of updating
On Thu, Nov 4, 2010 at 13:43, Hannu Krosing ha...@2ndquadrant.com wrote:
So your plan was to have some savepoint before each execute ?
How would one rollback the latest transaction ?
It is always rolled back. Its how plperl works today:
create or replace function foo() returns int as $$
eval
On Thu, Nov 4, 2010 at 14:29, Alex Hunsaker bada...@gmail.com wrote:
On Thu, Nov 4, 2010 at 13:43, Hannu Krosing ha...@2ndquadrant.com wrote:
So your plan was to have some savepoint before each execute ?
How would one rollback the latest transaction ?
It is always rolled back. Its how
Robert Haas robertmh...@gmail.com writes:
On Wed, Oct 20, 2010 at 8:11 PM, Robert Haas robertmh...@gmail.com wrote:
I'm imagining that the kernel of a
snapshot is just a WAL position, ie the end of WAL as of the time you
take the snapshot (easy to get in O(1) time). Visibility tests then
On Thu, Nov 4, 2010 at 2:00 PM, Tom Lane t...@sss.pgh.pa.us wrote:
Robert Haas robertmh...@gmail.com writes:
On Wed, Oct 20, 2010 at 8:11 PM, Robert Haas robertmh...@gmail.com wrote:
I'm imagining that the kernel of a
snapshot is just a WAL position, ie the end of WAL as of the time you
take
Excerpts from Dimitri Fontaine's message of jue nov 04 16:39:31 -0300 2010:
Tom Lane t...@sss.pgh.pa.us writes:
Not having read the patch, but ... the idea that was in the back of
my mind was to have a generic AlterObjectNamespace function that
would take parameters approximately like the
On Wed, Oct 20, 2010 at 8:24 PM, Tom Lane t...@sss.pgh.pa.us wrote:
Robert Haas robertmh...@gmail.com writes:
On Wed, Oct 20, 2010 at 10:07 PM, Tom Lane t...@sss.pgh.pa.us wrote:
I'm less than convinced by the hypothesis that most transactions would
avoid taking snapshots in this regime,
Excerpts from Dimitri Fontaine's message of jue nov 04 16:42:53 -0300 2010:
Alvaro Herrera alvhe...@commandprompt.com writes:
2. I think the guts of AlterExtensionNamespace (the large switch block)
should be elsewhere, probably in alter.c
That's implemented in the alter_extension patch v2,
On Thu, Nov 4, 2010 at 10:27 AM, Fujii Masao masao.fu...@gmail.com wrote:
On Tue, Nov 2, 2010 at 10:38 PM, Dimitri Fontaine
dimi...@2ndquadrant.fr wrote:
Fujii Masao masao.fu...@gmail.com writes:
After 9.0 release, I've often heard that some people want to know
how far transactions have been
[ for the archives' sake ]
I wrote:
I had a thought about how to make get_tabstat_entry() faster without
adding overhead: what if we just plain remove the search, and always
assume that a new entry has to be added to the tabstat array?
I spent some time looking into this idea. It doesn't
2010/11/4 Daniele Varrazzo daniele.varra...@gmail.com:
On Sat, Sep 18, 2010 at 5:01 PM, Pavel Stehule pavel.steh...@gmail.com
wrote:
Hello
who is psycopg maintainer, please? Can somebody explains to me, why
psycopg doesn't support twophase commit still, although some
implementation was
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