Answers for "column order in postgresql"

order by postgresql

SELECT
	select_list
FROM
	table_name
ORDER BY
	sort_expression1 [ASC | DESC],
        ...
	sort_expressionN [ASC | DESC];Code language: SQL (Structured Query Language) (sql)

postgresql column ordering

SELECT a.attname, t.typname, t.typalign, t.typlen
  FROM pg_class c
  JOIN pg_attribute a ON (a.attrelid = c.oid)
  JOIN pg_type t ON (t.oid = a.atttypid)
 WHERE c.relname = 'user_order'
   AND a.attnum >= 0
 ORDER BY t.typlen DESC;

   attname   |   typname   | typalign | typlen 
-------------+-------------+----------+--------
 id          | int8        | d        |      8
 user_id     | int8        | d        |      8
 order_dt    | timestamptz | d        |      8
 ship_dt     | timestamptz | d        |      8
 receive_dt  | timestamptz | d        |      8
 item_ct     | int4        | i        |      4
 order_type  | int2        | s        |      2
 is_shipped  | bool        | c        |      1
 tracking_cd | text        | i        |     -1
 ship_cost   | numeric     | i        |     -1
 order_total | numeric     | i        |     -1