Re: How serial primary key numbers are assigned

On 4/4/19 11:27 AM, Rich Shepard wrote:
> On Thu, 4 Apr 2019, Adrian Klaver wrote:
> 
>> See:
>> https://www.postgresql.org/docs/11/sql-createsequence.html
> 
> Thanks, Adrian.
> 
> My web searches did not find this URL, only results on how to set up
> automatic serial id generation.

Well serial is basically a macro for:

https://www.postgresql.org/docs/11/datatype-numeric.html#DATATYPE-SERIAL


"CREATE SEQUENCE tablename_colname_seq;
CREATE TABLE tablename (
     colname integer NOT NULL DEFAULT nextval('tablename_colname_seq')
);
ALTER SEQUENCE tablename_colname_seq OWNED BY tablename.colname;
"





> 
> Regards,
> 
> Rich
> 
> 
> 


-- 
Adrian Klaver
adrian.klaver@aklaver.com