Import date dd/mm from txt to table with SQL - sql

Question

I'm a total beginner and already searched all over the place, so please bear with me.
I have a txt file with this kind of data (DD/MM) and ; as delimiters:
01/10;10/06;15/11;10/07
01/10;10/06;15/11;10/07
01/11;20/06;10/11;30/07
01/11;20/06;10/11;30/07
10/11;20/06;20/01;30/07
01/10;01/06;15/11;30/06
Firstly, I set datestyle to European;
So I have DateStyle - "ISO, DMY".
After, I tried to import this data into some of the columns of the pheno table (see code below), using postgresql:
COPY pheno(planting_onset, harvesting_onset, planting_end, harvesting_end)
FROM '/home/user/Documents/worldcrops/algeria_times.txt' DELIMITERS ';';
And gave the following error:
ERROR: invalid input syntax for type date: "01/10"
CONTEXT: COPY pheno, line 1, column planting_onset: "01/10"
********** Error **********
ERROR: invalid input syntax for type date: "01/10"
SQL state: 22007
Context: COPY pheno, line 1, column planting_onset: "01/10"
Questions: How do I copy this data type DD/MM into a table which columns have date as "data type"? Should I change the columns "data type"?
Thanks in advance.

Answer 1

It's expecting DMY but you're only giving it days and months. This is kind of hacky but i think it should work:
ALTER TABLE pheno
ADD planting_onset_temp VARCHAR(16),
harvesting_onset_temp VARCHAR(16),
planting_end_temp VARCHAR(16),
harvesting_end_temp VARCHAR(16);
COPY pheno(planting_onset_temp, harvesting_onset_temp, planting_end_temp, harvesting_end_temp) FROM '/home/user/Documents/worldcrops/algeria_times.txt' DELIMITERS ';';
UPDATE pheno
SET planting_onset = CONCAT(planting_onset_temp, '/2016'),
harvesting_onset = CONCAT(harvesting_onset_temp, '/2016'),
planting_end = CONCAT(planting_end_temp, '/2016'),
harvesting_end = CONCAT(harvesting_end_temp, '/2016');
ALTER TABLE pheno DROP COLUMN planting_onset_temp, harvesting_onset_temp, planting_end_temp, harvesting_end_temp;
Replace '/2016' with whatever year is relevant.