850x Faster PostgreSQL Writes With One Line of Python

Every Python developer loading data into PostgreSQL hits the same wall. executemany() with 1M rows? 16 minutes. df.to_sql() ? Same thing — it generates INSERT statements under the hood. Even method='multi' with chunking is slow because each batch is still a SQL statement parsed by the server. PostgreSQL has had a faster path since version 7.x: the COPY protocol. It bypasses the SQL parser entirely and streams CSV or binary data directly to the storage engine. But wiring it up yourself means deal