Re: delete column - Mailing list pgsql-general

From Ian Harding
Subject Re: delete column
Date
Msg-id scc95de7.072@mail.tpchd.org
Whole thread Raw
In response to delete column  (webmaster <webmaster@harbornet.com>)
List pgsql-general
But you lose all your RI constraints.  I keep the RI constraints in a separate file so I can re-create them when I need
to... 

>>> "Hillensbeck, Preston" <PHillensbeck@sfbcic.com> 04/26/02 01:49PM >>>
There isn't a DROP COLUMN function yet, but you can do this...

SELECT ... -- select all columns but the one you want to remove
INTO TABLE new_table
FROM old_table;
DROP TABLE old_table;
ALTER TABLE new_table RENAME TO old_table;

This is straight out of Bruce Momjian's book, so you can give him credit for
this :)


-----Original Message-----
From: webmaster [mailto:webmaster@harbornet.com]
Sent: Friday, April 26, 2002 7:51 AM
To: pgsql-general@postgresql.org
Subject: [GENERAL] delete column


I know this is an easy question, but I can't find any info on how do
this in the PostgreSQL book.  How do you delete a column?  I've been
able to delete tables, db's, rows, etc.  But can't figure out how to
just delete a column.  I'm running RedHat 7.2 and PostgreSQL 7.1

Thanks for any help.


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