create and fill a test sql table

  postgres:

    image: postgres

    environment: 

      - POSTGRES_PASSWORD=postgres

      - POSTGRES_USER=postgres

      - POSTGRES_DB=postgres

    volumes:

      - ./sql/create_tables.sql:/docker-entrypoint-initdb.d/create_tables.sql

      - ./sql/fill_tables.sql:/docker-entrypoint-initdb.d/fill_tables.sql

# find what tables already exist in an empty database or initialize a table

# then use that for testing purposes

CREATE TABLE IF NOT EXISTS test_table (

    id INT NOT NULL,

    test_string VARCHAR(50),

    PRIMARY KEY (id)

);

INSERT INTO test_table VALUES (1, 'hello_world')