Docker: Error copying CSV file to container PostgreSQL - postgresql

Question

I'm trying to create a docker container with a PostgreSQL database with already set tables and containig data. I will setup this db through a sqlfile and load this data with a .CSV file. My OS is windows and i'm using Visual Studio Code
Directory
-pg_data
|-- DATA.CSV
-.env
-docker-compose.yml
-init.sql
docker-compose.yml
version: '3.1'
services:
db:
image: postgres
restart: always
environment:
- POSTGRES_USER=${DB_USER}
- POSTGRES_PASSWORD=${DB_PASSWORD}
- POSTGRES_DB=${DB_NAME}
- DATABASE_HOST=${DB_HOST}
ports:
- '5432:5432'
volumes:
- ./pg_data:/var/lib/pg_data
- ./init.sql:/docker-entrypoint-initdb.d/init.sql
volumes:
pg_data:
init.sql
DROP TABLE IF EXISTS public."measurements" CASCADE;
CREATE TABLE public."measurements"
(
"measurementID" integer GENERATED ALWAYS AS IDENTITY,
tijd timestamp without time zone NOT NULL DEFAULT CURRENT_TIMESTAMP,
geluid text NOT NULL,
co2 decimal NOT NULL,
temperatuur decimal NOT NULL,
luchtvochtigheid decimal NOT NULL,
voc decimal NOT NULL,
no2 decimal NOT NULL,
pm1_0 decimal NOT NULL,
pm2_5 decimal NOT NULL,
pm4_0 decimal NOT NULL,
pm10_0 decimal NOT NULL,
PRIMARY KEY ("measurementID")
);
\copy public."measurements" FROM '/var/lib/pgdata/DATA.CSV' DELIMITER ';' CSV;
Error
When i rundocker-compose up --build
the container gives back an error
db_1 | psql:/docker-entrypoint-initdb.d/init.sql:74: error: /var/lib/pgdata/DATA.CSV: No such file or directory
Tries:
I have tried moving the local pg_data and DATA.csv file to different places aswell as replacing my current volume to ./pg_data:/var/lib/postgresql/data/pgdata
This gave a different error:
db_1 | The files belonging to this database system will be owned by user "postgres".
db_1 | This user must also own the server process.
db_1 |
db_1 | The database cluster will be initialized with locale "en_US.utf8".
db_1 | The default database encoding has accordingly been set to "UTF8".
db_1 |
db_1 | Data page checksums are disabled.
db_1 |
db_1 | initdb: error: directory "/var/lib/postgresql/data" exists but is not empty
db_1 | If you want to create a new database system, either remove or empty
db_1 | the directory "/var/lib/postgresql/data" or run initdb
db_1 | with an argument other than "/var/lib/postgresql/data".