On Thu, Jan 22, 2015 at 11:59 PM, David G Johnston <david.g.johnston@xxxxxxxxx> wrote: > Pierre Hsieh wrote >> 1. just one column which type is integer in table >> 2. this columns only has 1 and 2 for 50 times as following > use generate_series(...), the modulus operator (to determine even/odd via > %2), and +1 Yes, embedded with CREATE TABLE AS: =# create table test as select a % 2 + 1 from generate_series(1,100) as a; SELECT 100 -- Michael -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general