On 03.12.2010 21:43, Robert Haas wrote:
On Fri, Dec 3, 2010 at 2:23 PM, Peter Eisentraut<pete...@gmx.net>  wrote:
On sön, 2010-11-28 at 20:40 -0500, Robert Haas wrote:
On Sun, Nov 28, 2010 at 8:06 PM, Itagaki Takahiro
<itagaki.takah...@gmail.com>  wrote:
On Fri, Nov 26, 2010 at 05:58, Steve Singer<ssin...@ca.afilias.info>  wrote:
The attached version of the patch gets your regression tests to pass.
I'm going to mark this as ready for a committer.

I think we need more discussions about the syntax:
  ALTER TABLE table_name ADD PRIMARY KEY (...) WITH (INDEX='index_name')

Why not:

ALTER TABLE table_name ADD PRIMARY KEY (...) INDEX index_name;

I would think that that determines that name of the index that the
command creates.  It does not convey that an existing index is to be
used.

Well, that'll become clear pretty quickly if you try to use it that
way, but I'm certainly open to other ideas.

Random thoughts:

ALTER TABLE table_name SET PRIMARY KEY INDEX index_name
ALTER INDEX index_name PRIMARY KEY

ALTER TABLE table_name SET PRIMARY KEY USING INDEX index_name. Quite verbose, but imho USING makes it much more clear that it's an existing index.

--
  Heikki Linnakangas
  EnterpriseDB   http://www.enterprisedb.com

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