What did you expect? Jens Schicke wrote: > pizza_de=# alter table store_flags add column flag integer; > ALTER TABLE > pizza_de=# alter table store_flags drop column flag; > ALTER TABLE > pizza_de=# alter table store_flags add column flag integer not null; > ERROR: column "flag" contains null values
The column was not added. It would've been filled with NULLs, which would violate the NOT NULL constraint. You have to give a DEFAULT if you add a column with a NOT NULL constraint. > pizza_de=# alter table store_flags drop column flag; > ERROR: column "flag" of relation "store_flags" does not exist The column doesn't exist, because the add column above failed, and was rolled back. > pizza_de=# alter table store_flags add column flag integer not null; > ERROR: column "flag" contains null values Same as above.. -- Heikki Linnakangas EnterpriseDB http://www.enterprisedb.com ---------------------------(end of broadcast)--------------------------- TIP 1: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly