PG COPY error: invalid input syntax for integer

Question

Running COPY results in ERROR: invalid input syntax for integer: \"\" error message for me. What am I missing?

My /tmp/people.cs

Answer 1

CREATE TABLE people (
  first_name varchar(20),
  age        integer,
  last_name  varchar(20)
);

"first_name","age","last_name" Ivan,23,Poupkine Eugene,,Pirogov

copy people from 'file.csv' with (delimiter ';', null '');

select * from people;

Just in first column.....