| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Jeff Davis <pgsql(at)j-davis(dot)com> |
| Cc: | Ragnar <gnari(at)hive(dot)is>, pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Online index builds |
| Date: | 2006-12-07 23:11:02 |
| Message-ID: | 21629.1165533062@sss.pgh.pa.us |
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Jeff Davis <pgsql(at)j-davis(dot)com> writes:
> I think all you need to do what you want is something like:
> ALTER TABLE foo DROP CONSTRAINT foo_pkey KEEP INDEX;
> Because then you could drop the primary key status on a column without
> affecting the column or the index, then use my suggested syntax to
> switch the primary key status to a different index like so:
> ALTER TABLE foo SET PRIMARY KEY INDEX foo_othercolumn_index;
That seems like an awful lot of uglification simply to let the index be
marked as "primary key" rather than just "unique".
regards, tom lane
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