On 24 September 2010 16:05, Chris Barnes <compuguruchrisbarnes@xxxxxxxxxxx> wrote: > > I am confused with what this is telling me. > I have a table and I am trying to add a new column with constraint not null. > > > What am I missing? > Chris > > > pgdb001=> alter table schema.table add COLUMN column_name integer not null; > ERROR: column "column_name" contains null values What it's telling you is that the column can't contain null values, but you're adding a new column with no default, so it will naturally use null. Try adding a default like: ALTER TABLE schema.table ADD COLUMN column_name integer NOT NULL DEFAULT 0; -- Thom Brown Twitter: @darkixion IRC (freenode): dark_ixion Registered Linux user: #516935 -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general