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Re: Updating pg_attribute to change field's data type from integer to bigint on very large table - Mailing list pgsql-general

From Jeff Adams
Subject Re: Updating pg_attribute to change field's data type from integer to bigint on very large table
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Msg-id CA+BdxK-=+AwW3k9d7U_sAQS0HnKY_ZyriunGikMP5L=U+BY=NA@mail.gmail.com
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In response to Re: Updating pg_attribute to change field's data type from integer to bigint on very large table  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: Updating pg_attribute to change field's data type from integer to bigint on very large table  (Bèrto ëd Sèra <berto.d.sera@gmail.com>)
Re: Updating pg_attribute to change field's data type from integer to bigint on very large table  (Steve Crawford <scrawford@pinpointresearch.com>)
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so i can? if so, how do i go about? i should mention that, while i dabble in postgres dba activity, it is not my day job...

On Fri, Apr 13, 2012 at 11:27 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
I wrote:
> No, that is an actual on-disk change (making the field physically
> wider), so it's going to cost ya.  There are some cases where the
> on-disk representation doesn't change and so a catalog update isn't
> needed, but int4->int8 isn't one of them.

Sheesh, hit send too quickly on that.  Of course I meant "and so a
catalog update is all that's needed".

                       regards, tom lane



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Jeffrey D. Adams
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