On Thu, 2003-06-19 at 10:05, Alvaro Herrera wrote: > On Thu, Jun 19, 2003 at 09:52:14AM -0400, Rod Taylor wrote: > > On Thu, 2003-06-19 at 09:40, Tom Lane wrote: > > > Do we want them to? If we don't mind them being executed, it is far > > easier to: > > > > - alter table structure > > - Add all new constraints (without confirming their correctness at that > > time) > > - update table contents via an SPI call to UPDATE WHERE <column> IS NULL > > Sorry, I haven't read the spec, but what happens when there is a default > value already and it's not NULL? Are tuples where column = default > updated? Are tuples where column IS NULL updated?
We're talking about add column. Since it's a new column, there will never be a default and all entries are NULL in PostgreSQL. -- Rod Taylor <[EMAIL PROTECTED]> PGP Key: http://www.rbt.ca/rbtpub.asc
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