On Tue, Sep 11, 2012 at 07:20:28PM +0600, AI Rumman wrote: > I have a table as follows: > I execued the query: > ALTER TABLE entity ADD COLUMN owner_type char(1) NOT NULL default 'U'; > > The db is stuck. The enity table has 2064740 records; such alter table has to rewrite whole table. So it will take a while > Watching locks: output of this was perfectly unreadable, because your email client wrapped lines at some random places. In future - please put such dumps on some paste site, or just attach it to mail, and not copy/paste them to body of message. Best regards, depesz -- The best thing about modern society is how easy it is to avoid contact with it. http://depesz.com/ -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance