pg_bulkload sequential

[Leandro Guimarães]

Hello,
  I have a process using pg_bulkload and sometimes i have duplicated keys
in my csv file that pg_bulkload uses.

  My question is: pg_bulkload insert it in sequential order ?

   Example, if i have the following csv file:

    key_1;0.00
    key_1;100.00

    And use the ON_DUPLICATE_KEEP = NEW in .ctl file, it's guaranteed that
the value 0.00 will be overwritten with 100.00? Or pg_bulkload can't
guarantee this order?

Thanks!
Leandro Guimarães