connection_string: postgresql://postgres:mysecretpassword@localhost:5433/postgres
query: COPY (SELECT id::BIGINT, uuid::TEXT, username::TEXT, score::REAL, is_active::BOOLEAN,
  last_login::TIMESTAMP, notes::TEXT, course_id::INT, start_date::DATE, rating::FLOAT8
  FROM benchmark_table) TO STDOUT (FORMAT binary)
schema:
- arrow_type: Int64
  column_name: id
- arrow_type: Utf8
  column_name: uuid
- arrow_type: Utf8
  column_name: username
- arrow_type: Float32
  column_name: score
- arrow_type: Boolean
  column_name: is_active
- arrow_type: Timestamp(Nanosecond, None)
  column_name: last_login
- arrow_type: Utf8
  column_name: notes
- arrow_type: Int32
  column_name: course_id
- arrow_type: Date32
  column_name: start_date
- arrow_type: Float64
  column_name: rating