On Feb 21, 2007, at 10:26 AM, Scott Marlowe wrote:
> The only thing I can think of that rewrites a whole postgresql table
> would be reindexing it, or an update without a where clause (or a
> where
> clause that includes every row). Normal operations, like create
> index,
> add column, drop column, etc do not need to rewrite the table and
> happen
> almost instantly.
Reindexing won't re-write a table; clustering will. Also some ALTER
TABLE commands will (such as changing the data type of a column, or
creating a new column that's NOT NULL).
--
Jim Nasby jim@nasby.net
EnterpriseDB http://enterprisedb.com 512.569.9461 (cell)
