On 1/22/2015 6:54 AM, 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
note that tables are unordered sets, the rows of a table have no implied order. 1 1 1 1 1 2 2 2 2 2 is the same table as 1 2 1 2 1 2 1 2 1 2 ...
-- john r pierce 37N 122W somewhere on the middle of the left coast -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
