you can convert from type to type using ::varchar or ::char(size) or ::integer so you can use sequence but you will have to convert it's result to suitable type (that can also be put in default value of user_id attribute)
On Fri, May 11, 2012 at 9:30 PM, Carlos Mennens <carlos.menn...@gmail.com>wrote: > Thanks for all the help thus far everyone! I sadly didn't > create/design the table and would love to create a SEQUENCE on that > particular field but not sure how unless I DROP the table and create > from scratch. > > Currently the data TYPE on the primary key field (users_id) is CHAR > and I have no idea why...it should be NUMERIC or SERIAL but it's not > so my question is if I want to ALTER the column and create a sequence, > would I simply do: > > ALTER TABLE users > ALTER COLUMN users_id TYPE serial > ; > > Obviously if any of the data stored in users_id is actual CHAR, I'm > guessing the database would reject that request to change type as the > existing data would match. However the data type is CHAR but the field > values are all numeric from 1000000010 - 1000000301 so I'm hoping that > would work for SERIAL which is just INTEGER, right? > > -- > Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-sql > -- --------------------------------------- Viktor Bojović --------------------------------------- Wherever I go, Murphy goes with me
