Re: [HACKERS] Per-database search_path

2006-12-27 Thread David Fetter
On Fri, Sep 29, 2006 at 11:55:18PM -0400, Bruce Momjian wrote:
 
 Added to TODO:
 
   * Allow more complex user/database default GUC settings
   
 Currently, ALTER USER and ALTER DATABASE support per-user and
 per-database defaults.  Consider adding per-user-and-database
 defaults so things like search_path can be defaulted for a
 specific user connecting to a specific database.

Is anybody claiming this TODO?  Is the design fleshed out enough for
someone to go forward with it?

Cheers,
D

 
 ---
 
 Tom Lane wrote:
  David Fetter [EMAIL PROTECTED] writes:
   On Fri, Sep 29, 2006 at 05:41:35PM -0400, Tom Lane wrote:
   Yeah.  ISTM the correct generalization is per-user per-database
   default GUC settings, which has nothing to do with superuserness.
  
   This sounds like a TODO for 8.3.  What wrinkles might this involve?
  
  Probably rethink the rolconfig/datconfig representation.  Maybe it's
  time for a separate catalog for the settings.
  
   Offhand, I'm thinking that it would touch the inheritance stuff that
   roles have.
  
  No, it wouldn't, because defaults only apply at the instant of
  connection, so there's no inheritance or SET ROLE to worry about.
  Whatever role you log in as is what you get.
  
  regards, tom lane
  
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 -- 
   Bruce Momjian   [EMAIL PROTECTED]
   EnterpriseDBhttp://www.enterprisedb.com
 
   + If your life is a hard drive, Christ can be your backup. +

-- 
David Fetter [EMAIL PROTECTED] http://fetter.org/
phone: +1 415 235 3778AIM: dfetter666
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Re: [HACKERS] Per-database search_path

2006-12-27 Thread Bruce Momjian
David Fetter wrote:
 On Fri, Sep 29, 2006 at 11:55:18PM -0400, Bruce Momjian wrote:
  
  Added to TODO:
  
  * Allow more complex user/database default GUC settings
  
Currently, ALTER USER and ALTER DATABASE support per-user and
per-database defaults.  Consider adding per-user-and-database
defaults so things like search_path can be defaulted for a
specific user connecting to a specific database.
 
 Is anybody claiming this TODO?  Is the design fleshed out enough for
 someone to go forward with it?

I think we just need to decide on the user API for this.

---


 
 Cheers,
 D
 
  
  ---
  
  Tom Lane wrote:
   David Fetter [EMAIL PROTECTED] writes:
On Fri, Sep 29, 2006 at 05:41:35PM -0400, Tom Lane wrote:
Yeah.  ISTM the correct generalization is per-user per-database
default GUC settings, which has nothing to do with superuserness.
   
This sounds like a TODO for 8.3.  What wrinkles might this involve?
   
   Probably rethink the rolconfig/datconfig representation.  Maybe it's
   time for a separate catalog for the settings.
   
Offhand, I'm thinking that it would touch the inheritance stuff that
roles have.
   
   No, it wouldn't, because defaults only apply at the instant of
   connection, so there's no inheritance or SET ROLE to worry about.
   Whatever role you log in as is what you get.
   
 regards, tom lane
   
   ---(end of broadcast)---
   TIP 6: explain analyze is your friend
  
  -- 
Bruce Momjian   [EMAIL PROTECTED]
EnterpriseDBhttp://www.enterprisedb.com
  
+ If your life is a hard drive, Christ can be your backup. +
 
 -- 
 David Fetter [EMAIL PROTECTED] http://fetter.org/
 phone: +1 415 235 3778AIM: dfetter666
   Skype: davidfetter
 
 Remember to vote!

-- 
  Bruce Momjian   [EMAIL PROTECTED]
  EnterpriseDBhttp://www.enterprisedb.com

  + If your life is a hard drive, Christ can be your backup. +

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Re: [HACKERS] Per-database search_path

2006-12-27 Thread Tom Lane
Bruce Momjian [EMAIL PROTECTED] writes:
 David Fetter wrote:
 Is anybody claiming this TODO?  Is the design fleshed out enough for
 someone to go forward with it?

 I think we just need to decide on the user API for this.

... and the catalog representation.

regards, tom lane

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Re: [HACKERS] Per-database search_path

2006-09-29 Thread Josh Berkus
DF,

 I'd like to propose a feature for 8.3, which would let login roles
 have a default search_path both globally, as it is now, and
 per-database.  This is because in general no two databases have
 any schemas in common, and a login role should be able to do something
 reasonable just by connecting.

Yes.  I've been bitten by this more than once ...

However, it almost seems like this would become a piece of the other 
per-database-user stuff we'd like to do, like local superuser.

-- 
--Josh

Josh Berkus
PostgreSQL @ Sun
San Francisco

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Re: [HACKERS] Per-database search_path

2006-09-29 Thread David Fetter
On Fri, Sep 29, 2006 at 01:06:09PM -0700, Josh Berkus wrote:
 DF,
 
  I'd like to propose a feature for 8.3, which would let login roles
  have a default search_path both globally, as it is now, and
  per-database.  This is because in general no two databases have
  any schemas in common, and a login role should be able to do
  something reasonable just by connecting.
 
 Yes.  I've been bitten by this more than once ...

Come to think of it, this ties in with the ON (DIS)CONNECT TRIGGER
idea that others have brought up in the past.  The trigger idea may be
too big a hammer, and might even be ill-advised from a design point of
view, but I thought I'd bring it up anyhow.

 However, it almost seems like this would become a piece of the other
 per-database-user stuff we'd like to do, like local superuser.

I'm not sure that's the same.  The thing about superuser as it exists
now is the ability to write to the filesystem, which means that
there's no boundary really possible.  Maybe some kind of tiered system
of users with more than 2 tiers...but that sounds pretty byzantine to
me.

Cheers,
D
-- 
David Fetter [EMAIL PROTECTED] http://fetter.org/
phone: +1 415 235 3778AIM: dfetter666
  Skype: davidfetter

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Re: [HACKERS] Per-database search_path

2006-09-29 Thread David Fetter
On Fri, Sep 29, 2006 at 05:41:35PM -0400, Tom Lane wrote:
 David Fetter [EMAIL PROTECTED] writes:
  On Fri, Sep 29, 2006 at 01:06:09PM -0700, Josh Berkus wrote:
  However, it almost seems like this would become a piece of the
  other per-database-user stuff we'd like to do, like local
  superuser.
 
  I'm not sure that's the same.  The thing about superuser as it
  exists now is the ability to write to the filesystem, which means
  that there's no boundary really possible.
 
 Yeah.  ISTM the correct generalization is per-user per-database
 default GUC settings, which has nothing to do with superuserness.

This sounds like a TODO for 8.3.  What wrinkles might this involve?
Offhand, I'm thinking that it would touch the inheritance stuff that
roles have.

Cheers,
D
-- 
David Fetter [EMAIL PROTECTED] http://fetter.org/
phone: +1 415 235 3778AIM: dfetter666
  Skype: davidfetter

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Re: [HACKERS] Per-database search_path

2006-09-29 Thread Tom Lane
David Fetter [EMAIL PROTECTED] writes:
 On Fri, Sep 29, 2006 at 05:41:35PM -0400, Tom Lane wrote:
 Yeah.  ISTM the correct generalization is per-user per-database
 default GUC settings, which has nothing to do with superuserness.

 This sounds like a TODO for 8.3.  What wrinkles might this involve?

Probably rethink the rolconfig/datconfig representation.  Maybe it's
time for a separate catalog for the settings.

 Offhand, I'm thinking that it would touch the inheritance stuff that
 roles have.

No, it wouldn't, because defaults only apply at the instant of
connection, so there's no inheritance or SET ROLE to worry about.
Whatever role you log in as is what you get.

regards, tom lane

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Re: [HACKERS] Per-database search_path

2006-09-29 Thread Bruce Momjian

Added to TODO:

* Allow more complex user/database default GUC settings

  Currently, ALTER USER and ALTER DATABASE support per-user and
  per-database defaults.  Consider adding per-user-and-database
  defaults so things like search_path can be defaulted for a
  specific user connecting to a specific database.


---

Tom Lane wrote:
 David Fetter [EMAIL PROTECTED] writes:
  On Fri, Sep 29, 2006 at 05:41:35PM -0400, Tom Lane wrote:
  Yeah.  ISTM the correct generalization is per-user per-database
  default GUC settings, which has nothing to do with superuserness.
 
  This sounds like a TODO for 8.3.  What wrinkles might this involve?
 
 Probably rethink the rolconfig/datconfig representation.  Maybe it's
 time for a separate catalog for the settings.
 
  Offhand, I'm thinking that it would touch the inheritance stuff that
  roles have.
 
 No, it wouldn't, because defaults only apply at the instant of
 connection, so there's no inheritance or SET ROLE to worry about.
 Whatever role you log in as is what you get.
 
   regards, tom lane
 
 ---(end of broadcast)---
 TIP 6: explain analyze is your friend

-- 
  Bruce Momjian   [EMAIL PROTECTED]
  EnterpriseDBhttp://www.enterprisedb.com

  + If your life is a hard drive, Christ can be your backup. +

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