BUG #6017: COPY from CSV file, WITH CSV HEADER fields order not respected

The following bug has been logged online:

Bug reference:      6017
Logged by:          pedro mg
Email address:      pedro@tquadrado.com
PostgreSQL version: 8.4.8
Operating system:   Ubuntu Linux 10.10
Description:        COPY from CSV file, WITH CSV HEADER fields order not
respected
Details:

Documentation says HEADER is discarded for reads. When uploading millions of
records from other legacy databases, would be an awesome addition to have
Header fields order not discarded for reads.

-Have a table: \d test1

 key    | integer               | not null default
nextval('teste1_key_seq'::regclass)
 c1     | character varying(10) |
 c2     | double precision      |
Indexes:
    "teste1_pkey" PRIMARY KEY, btree (key)

- Have a CSV file, /tmp/test1.csv with an HEADER first line with the
following order (note:different from the table):

key,c2,c1
1,1,"Kg"
2,2,"g"
3,3,"mg"
4,4,"µg"
5,11,"l"
6,12,"ml"
7,13,"µl"

- Issue a COPY command:

# COPY test1 FROM '/tmp/test1.csv' WITH CSV HEADER

- Returns:

ERROR:  invalid input syntax for type double precision: "Kg"
CONTEXT:  COPY teste1, line 2, column c2: "Kg"