Re: Resize numeric column without changing data? - Mailing list pgsql-general

From Merlin Moncure
Subject Re: Resize numeric column without changing data?
Date
Msg-id CAHyXU0ze-fVH9mqxKHK0bGTvJ8TTiinak2kaFRbi+Aa=dVFt0A@mail.gmail.com
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In response to Re: Resize numeric column without changing data?  (Jeff Davis <pgsql@j-davis.com>)
List pgsql-general
On Mon, Apr 9, 2012 at 5:16 PM, Jeff Davis <pgsql@j-davis.com> wrote:
> On Mon, 2012-04-09 at 16:06 -0400, Lukas Eklund wrote:
>> Ah. I must have not noticed that the typmod for views is not inherited
>> automatically. I'm okay with developing a script to recreate the 15 or
>> so views the depend on that table. What I'm trying to avoid is locking
>> that table for a substantial amount of time. Thanks for the advice!
>
> FYI, later versions of postgres try to avoid rewrites of the table when
> possible for simple ALTERs like the one you're talking about.
>
> Are you using PostgreSQL 9.1? Try it out in a simple test case... maybe
> the lock is only held for an instant anyway. Some of these optimizations
> went in 9.2 (not released yet) but I think the one you need is in 9.1.

nope -- see link upthread.  numeric is 9.2+

merlin

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