On Sat, 2016-01-02 at 00:20 +, ERR ORR wrote:
> I need to import some DB schemas which are defined in .XSD (a XML
> derivative) format.
> I've googled about this but have found no satisfactory answer. Perhaps
> I
> just don't know what exactly to ask Google.
>
> So please:
> - What tool can I
On Sat, 2015-08-22 at 15:15 +, Melvin Davidson wrote:
> I've been searching for a "PostgreSQL Developer Best Practices" with not
> much luck,
> so I've started my own. At the risk of stirring up a storm of controversy,
> I would appreciate additional suggestions and feedback.
>
You might add:
On Tue, 2015-08-25 at 15:41 +, Neil Tiffin
wrote:
> I really like the standardization that PostgreSQL uses in auto
> generating default names. The rule I use is to always use the auto
> generated names unless the object is referenced routinely in code. In
> most cases developers don’t care
I'm trying to build postgres 9.2 beta1 on debian stable from sources, in
a way that plays nicely with the debian cluster management stuff.
If I configure with libdir=/usr/lib/postgres everything works but the
shared libraries end up in the wrong place (ie just where I specified).
If I configure
On Sat, 2011-07-30 at 22:46 +0200, Dimitri Fontaine wrote:
> Tom Lane writes:
> > Hmm. I don't think we have any code in there to prohibit the same
> > object from being made a member of two different extensions ... but this
> > example suggests that maybe we had better check that.
>
> I see you
In postgres 9.1 I have created 2 extensions, veil and veil_demo. When I
install veil, it creates a default (not very useful) version of a
function: veil_init().
When I create veil_demo, it replaces this version of the function with
it's own (useful) version.
If I drop the extension veil_demo, I
I'd like to be able to wait for notify events using a user-defined C
function. All of the examples and code I can find use libpq.
Is there some way I can synchronously wait for notify events using SPI?
Is there some reason this is a dumb idea? I wondered about the risk of
deadlocking a backend
he postgres API goes, exposing a function that would validate a dayname
returning a day number would resolve all of this for considerably less
complexity. Also throwing an error in the to_date function for
unexpectedly mixed input formats seems quite reasonable.
Thanks for your time and atten
I'm trying to validate a day of the week, and thought that to_date would
do the job for me. But I found a case where it cannot tell the
difference between sunday and monday. Is this a bug or intended
behaviour?
dev=# select to_date('2011-13-Mon', '-IW-DY');
to_date
2011-03
On Mon, May 24, 2010 at 2:16 PM, Hector Beyers
wrote:
>
> Hi guys,
> does ANYONE have any tips on hiding data on a database server? This
means
> that data is stored in places that is not necessarily picked up in the
> schema of the database. I am doing some research on databases and need
some
> di
I'm trying to reconstruct create operator class statements from the
catalogs. My problem is that access method operators are related only
to their operator families.
My current assumtion is that all operators for an operator class will
have the same left and right operand types as the data type (
On Sun, 2009-09-13 at 12:04 -0300, pgsql-general-ow...@postgresql.org
wrote:
> >A user must have the TRUNCATE privilege to truncate a table or be the
> >tables owner.
>
> Well the TRUNCATE example I mentioned is perhaps not explicit of what
> I meant
> to say. A user who can modify data in a cli
I am trying to recreate a domain definition from information in
pg_catalog and getting the following warnings:
WARNING: nonstandard use of \\ in a string literal
LINE 3: CHECK (((VALUE ~ '^\\d{4}$'::text) OR (VALUE ~ '^\\d{5}-\\...
^
HINT: Use the escape strin
that they want to
do this is, consider very carefully whether the benefits of a VPD are
worth the cost. It is generally much easier to place the sort of
controls you need in your application than in the database.
__
Marc Munro (developer of veil)
--
Sent via pgsql-general mailing list (pgsql-
On Wed, 2008-07-09 at 20:42 -0300, [EMAIL PROTECTED]
wrote:
> > Is pgmemcache still being actively supported/developed? I have
> > experienced a database crash with postgres 8.3.3 and pgmemcache
> 1.2beta1
>
> Yes and no. I just joined up, and hope to be submitting some patches
> to it soon, as w
Hope this is the right place to ask. Apologies if not.
Is pgmemcache still being actively supported/developed? I have
experienced a database crash with postgres 8.3.3 and pgmemcache 1.2beta1
Doing select * from pg_settings (with shared_preload_libraries defined
and no custom variable definition
The statement:
revoke all on view internal.all_objects from public;
yields a syntax error. The docs show that the word "view" is not
acceptable in this statement which is fine but the surprising thing is
that:
revoke all on table internal.all_objects from public;
works fine even though al
I was just looking at the 8.3.1 documentation on the postgresql web
site.
According to the docs, timestamp with time zone takes less space than
time with time zone with the same resolution. Is this a documentation
bug? It makes no sense to me that by storing the date with the time you
can save 4
Can someone please tell me how to extract the mix, max, increment by,
etc, values for a sequence from the system catalogs. Is this in the
manual somewhere (I couldn't find it)?
Thanks
__
Marc
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TIP 1: if posting/reading t
On Tue, 2007-11-12 at 19:32 -0500, Tom Lane wrote:
> Marc Munro <[EMAIL PROTECTED]> writes:
> > This works fine:
> > "str2"varchar(40)
> > This does not:
> > "str2""pg_catalog"."varch
It seems that in create table I cannot specify the schema of a built-in
type that has a length specifier. Nor can I double-quote the type name.
Is this correct/expected behaviour, and are there work-arounds?
This works fine:
create table "public"."additional" (
"str1""pg_catalo
Is there any way of identifying whether a cast was built-in or is
user-defined?
I am tempted to just assume that if the cast is to/from a user-defined
type or uses a user-defined function that it is user-defined. I suspect
though that a user could define a new cast on pre-defined types using a
pr
I have a client that wants to use active directory for authentication
of connections to a postgres database. They want to be able to
monitor what each user is doing so believe that the best solution is
to have one database account per user. However, they do not want to
have to manage the
I am puzzled by the cascade and restrict options to the alter domain
drop constraint command.
I do not see how a dropping a check constraint should cascade to
anything, or indeed be restricted by anything.
My reasoning is simple: if I drop a check constraint on a domain, no
data should be affecte
On Thu, 2006-30-11 at 17:22 -0400, [EMAIL PROTECTED]
wrote:
> Date: Thu, 30 Nov 2006 12:48:53 -0600
> From: John McCawley <[EMAIL PROTECTED]>
> To: pgsql-general@postgresql.org
> Subject: Separation of clients' data within a database
> Message-ID: <[EMAIL PROTECTED]>
>
> ... I would assume there a
On Mon, 2006-06-11 at 22:27 +0100, Alexander Staubo wrote:
> On Nov 6, 2006, at 21:00 , Marc Munro wrote:
>
> > For an alternative approach, you might want to check out Veil:
> > http://pgfoundry.org/projects/veil
>
> Addendum: I took Veil to be undocumented since the
On Sat, 2006-04-11 at 06:13 -0400, [EMAIL PROTECTED]
wrote:
> Date: Fri, 3 Nov 2006 23:08:47 +0100
> From: Alexander Staubo <[EMAIL PROTECTED]>
> To: PgSQL General
> Subject: Per-row security
> Message-ID: <[EMAIL PROTECTED]>
>
> I am designing an application which requires fine-grained role-base
Am I right in thinking that altering a column from varchar(n) to
varchar(n+m) requires each tuple to be visited?
Recent experience suggests this is the case but my reading of the docs
has left me uncertain why this should be so. We are not changing the
fundamental type of the column, nor are we a
On Fri, 2006-08-25 at 15:43 -0400, Tom Lane wrote:
> Marc Munro <[EMAIL PROTECTED]> writes:
> > As near as we can tell, it looks like libpq blocked inside poll inside
> > libpq_gettext.
>
> > #0 0xe405 in __kernel_vsyscall ()
> > #1 0x005a31d4 in pol
On Fri, 2006-08-25 at 15:42 -0400, Alvaro Herrera wrote:
> SHOW lc_messages, I think. Is it something else than C? If so, it will
> probably try to read the corresponding postgres.mo file. Do the hung
> processes have that file open? (I'm not sure if you can find that out
> from only the core f
On Fri, 2006-08-25 at 15:10 -0400, Alvaro Herrera wrote:
> Wow, that's strange. Maybe it's trying to fetch something in the
> message catalogs. What are your locale settings?
>
I'm not sure exactly what you need to know. I do have this tho:
LANG=en_US.UTF-8
What other information would be h
Often, when we get short-lived network problems (like when our network
admins break the firewall), postgres client apps will lock-up. They do
not recover once the network is back to normal, do not time-out, and do
not fail with any sort of error.
This has been happening since at least postgres 7.
Has anyone ever seen a database spontaneously change character sets? I
could have sworn that all databases in my replication slave database
cluster were set up as SQL_ASCII. Now they are all UNICODE, and slony
is failing to replicate, due to invalid byte sequences.
Now I can't really *swear* tha
You are talking about row-level security. Different users must be able
to see different subsets of data.
This sounds like a job for Veil: http://veil.projects.postgresql.org/
Veil allows you to implement row-level access controls based upon any
criteria you can define. In your case, this woul
No, but Veil allows you do it:
http://veil.projects.postgresql.org/
Be warned, implementing column or row-level privileges is not trivial.
If you are sure you need to do it and want to try Veil, I'll give you
what help I can.
__
Marc
On Fri, 2006-03-17 at 11:50 -0400, [EMAIL PROTECTED]
wrote:
>
Sylvain,
All of the things you want to do can be done using Veil:
http://veil.projects.postgresql.org/
Be warned though, it is not simple. If you want privileges at the
column level, or based on a where clause, you will have to use
techniques like Veil's secured views.
It's better to avoid this
Tom,
Thanks. Good suggestions, both. I'm going to defer this problem until
we are able to upgrade.
__
Marc
On Mon, 2006-02-13 at 14:18 -0500, Tom Lane wrote:
> Marc Munro <[EMAIL PROTECTED]> writes:
> > I want to allow a non-superuser to alter objects owned by another user
I want to allow a non-superuser to alter objects owned by another user.
This should be an audited operation (logging a notice of what was done
to the postgres logs is sufficient).
This is so that I can allow trusted users to perform maintenance
operations without having to give them either superus
ction public.pg_stat_get_backend_activity(integer) returns text as '
begin
return pg_catalog.pg_stat_get_backend_activity($1);
end;
' language plpgsql security definer;
__
Marc
On Thu, 2006-01-19 at 12:38 -0500, Tom Lane wrote:
> Marc Munro <[EMAIL PROTECTED]> writes:
> > I want certa
I want certain users to be able to examine running queries using
pg_stat_get_backend_activity. Unfortunately, this will only show other
users' activity if you have superuser privilege.
I do not want to give monitoring users superuser privilege, but I do
need to allow them to perform monitoring ta
If I understand this correctly, I think you want to implement the sort
of security that Veil provides. Take a look at
http://pgfoundry.org/projects/veil/
The documentation is at
http://veil.projects.postgresql.org/curdocs/index.html
__
Marc
On Sun, 2006-01-01 at 17:02 -0400, littlebutty wrote:
w how to improve the security of postgresql
> Message-ID: <[EMAIL PROTECTED]>
>
> On Thu, Dec 29, 2005 at 09:22:09AM -0800, Marc Munro wrote:
>
> > http://pgfoundry.org/projects/veil/
> Marc, is there a higher level written summary available
> somewhere to be read to u
Sting,
I'm not entirely sure what you mean by improving the security of
postgresql but if you want to implement smart, efficient row-level
security you could take a look at Veil
http://pgfoundry.org/projects/veil/
Check the project home page for documentation. Veil is still an alpha
release but I
Carlos,
What you are asking for is a multi-master replication scheme. Slony-I
is a single master system, meaning that for each slony cluster only one
node can make changes to the data.
Without breaking slony's normal rules, I believe that there might be a
way to do it, though it will not be prett
Florian,
Reponses from, an ex-Oracle DBA, below.
On Mon, 2005-10-24 at 11:51 -0300, [EMAIL PROTECTED]
wrote:
> Date: Mon, 24 Oct 2005 14:29:24 +0200
> From: Florian Ledoux <[EMAIL PROTECTED]>
> To: pgsql-general@postgresql.org
> Subject: pg_dump, MVCC and consistency
> Message-ID: <[EMAIL PROTECTE
Nikolay,
I think I must be missing your point. Even if updatable views existed,
I would still have created Veil. The real point of Veil is to control
each type of operation (insert, update, etc) on each record.
With updatable views, you could avoid a lot of the tedium of creating
the instead-of
If you need user-accessible shared variables, you could take a look at
how Veil http://pgfoundry.org/projects/veil/ achieves this.
Veil provides a limited number of shared variables with an API for SQL
access. The variables may only be set during initialisation or reset to
avoid system state chan
Dave,
Sorry to be so late in responding to this but I may have just the
solution for you.
Please check out Veil at pgfoundry. This is an add-on to Postgres that
I think does just what you are looking for. As the developer of this
project, I would be pleased to offer you assistance.
http://veil.
Brew,
Yep we tried that. It did nothing. The same pg_hba.conf change worked
when we later tried it with the client disconnected.
__
Marc
> Date: Fri, 16 Sep 2005 21:36:01 -0400 (EDT)
> From: [EMAIL PROTECTED]
> To: pgsql-general@postgresql.org
> Subject: Re: pg_ctl reload breaks our client
> Me
Sep 16, 2005 at 04:34:46PM -0700, Marc Munro wrote:
> >> On Fri, 2005-09-16 at 17:10 -0600, Michael Fuhr wrote:
> >> This is not currently seen as a priority (the work-around of "don't do
> >> that" is seen as sufficient). I'm simply hoping to get someo
Michael,
Many thanks for your response; it is much appreciated. My responses are
embedded below:
On Fri, 2005-09-16 at 17:10 -0600, Michael Fuhr wrote:
> On Fri, Sep 16, 2005 at 02:16:29PM -0700, Marc Munro wrote:
> > It is Postgres 7.3.6. The client is a multi-threaded C++ cli
gt; On Fri, Sep 16, 2005 at 01:28:13PM -0700, Marc Munro wrote:
> > Yesterday a client application broke immediately after we issued a
> > pg_ctl reload command.
>
> How did the client break? What behavior did it exhibit? Were there
> any errors in the server's logs? Can
hanks.
__
Marc Munro
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8856359, 938856359
"template0",427, 427
All responses welcomed.
__
Marc Munro
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at 18:48 -0400, Tom Lane wrote:
> Marc Munro <[EMAIL PROTECTED]> writes:
> > Can someone explain this? I seem to have a query which is being blocked
> > by a lock. I was under the impression that selects are never blocked.
>
> AccessExclusiveLock blocks anything.
&
Can someone explain this? I seem to have a query which is being blocked
by a lock. I was under the impression that selects are never blocked.
Am I missing something or is this bad behaviour?
I am using slony and am synchronising a slave for the first time. In
the hope of seeing some progress on
Thanks to both Elein and Tom. pgstattuple (and dbsize) from contrib
gave me exactly what I wanted. The statistics views give me something
extra.
__
Marc
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t the number of dead tuples without actually doing a
vacuum?
Thanks.
__
Marc Munro
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