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From: Owen Jacobson <ojacobson@osl.com>
To: Maciej Piekielniak <piechcio@isb.com.pl>
Cc: pgsql-sql@postgresql.org
Subject: Re: alter table
Date: Wed, 15 Feb 2006 12:09:39 -0800
Message-ID: <144D12D7DD4EC04F99241498BB4EEDCC2207C4@nelson.osl.com> (raw)

Maciej Piekielniak wrote:
> 
> Hello Owen,
> 
> Wednesday, February 15, 2006, 8:56:05 PM, you wrote:
> >> ALTER TABLE proc MODIFY name varchar(64) DEFAULT '' NOT NULL;
> 
> OJ> Not under 7.4.
> 
> Hmm, maybe postgres can copy constraints and properties in 
> "create table .. as select"?

What is it you're actually trying to accomplish?  There's got to be a better way, but without understanding what you're doing (rather than how) it's hard to give you advice.

CREATE TABLE AS and SELECT INTO only reproduce data, not metadata.  AFAIK duplicating a table's constraints involves fishing around in the pg_ system tables.

-Owen



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