On Apr 27, 2007, at 12:35 PM, Gregory Stark wrote:
I have dropped a column (say column name is 'A') from the relation
R. By
setting the attisdropped as true in the pg_catalog.pg_attribute
table. But
the column is dropped locially not the physically. Can you please
tell me
when this column will be physically also dropped. Is this column is
automatically physically dropped? or I have to run some command to
dropped
it physically.
These kinds of questions are best sent to pgsql-general instead of -
hackers.
The column won't be dropped physically until you execute one of the
commands
that rewrites the table entirely. "CLUSTER" and "ALTER TABLE ALTER
column TYPE
type" are the two popular ones.
UPDATE SET field1 = field1; would also work, right?
--
Jim Nasby [EMAIL PROTECTED]
EnterpriseDB http://enterprisedb.com 512.569.9461 (cell)
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