Re: updating a view

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От m.c.wilkins@massey.ac.nz
Тема Re: updating a view
Дата
Msg-id 20061215020755.GP20895@massey.ac.nz
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Ответ на Re: updating a view  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: updating a view  (Tom Lane <tgl@sss.pgh.pa.us>)
Список pgsql-general
hi tom,

so maybe i'm using the word crash too liberally.  this is the error
message i get:

server closed the connection unexpectedly
        This probably means the server terminated abnormally
        before or while processing the request.
The connection to the server was lost. Attempting reset: WARNING:  terminating connection because of crash of another
serverprocess 
DETAIL:  The postmaster has commanded this server process to roll back the current transaction and exit, because
anotherserver process exited abnormally and possibly corrupted shared memory. 
HINT:  In a moment you should be able to reconnect to the database and repeat your command.
Failed.
!>
!>

a ps auwx | grep sql shows that postgres is running though, so maybe
not a complete crash?

version is 8.2.0, just downloaded a few days ago.  the max_stack_depth
is 2MB.

matt


On Thu, Dec 14, 2006 at 08:41:28PM -0500, Tom Lane wrote:
> m.c.wilkins@massey.ac.nz writes:
> > i would like to allow updates to a view, but pgsql crashes,
> > presummably from an infinite loop.
>
> If it crashes, that's a bug, regardless of whether the code is doing
> what you want.  However, if the thing is indeed into an infinite
> recursion, you might be running out of stack space, in which case the
> bug is an incorrect setting of max_stack_depth.  (PG 8.2 should be able
> to set max_stack_depth for itself on most platforms, but older releases
> rely on you to get it right.)  If you reduce max_stack_depth, do you get
> an error message instead of a crash?  What are the exact crash symptoms,
> anyway?  And which PG version is this?
>
>             regards, tom lane

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