MySQL :copyfrom is not working

[p1ass]

Version

1.20.0

What happened?

#2545 introduced a :copyfrom feature for MySQL database thanks to @kyleconroy .
However, it is not woking well.

I think the cause of problem is parseDriver function never returns SQLDriverGoSQLDriverMySQL.
https://github.com/sqlc-dev/sqlc/blob/faa1c9d156272eea4d33a31de2ab94951ba6af58/internal/codegen/golang/driver.go#L11C1-L35

Relevant log output

sqlc generate failed.
# package db
error generating code: :copyfrom is only supported by pgx and github.com/go-sql-driver/mysql

### Database schema

```sql
CREATE TABLE authors (
  id   bigint PRIMARY KEY,
  name text      NOT NULL,
  bio  text
);

SQL queries

-- name: BulkInsertAuthors :copyfrom
INSERT INTO authors (id, name, bio) VALUES (?, ?, ?);

Configuration

{
  "version": "1",
  "packages": [
    {
      "path": "db",
      "engine": "mysql",
      "schema": "query.sql",
      "queries": "query.sql"
    }
  ]
}

Playground URL

https://play.sqlc.dev/p/ffd4ea54087e3ade2e02ae5ea9c9d76f00a9f34d0f649544c8ac716a0c1cfed0

What operating system are you using?

macOS

What database engines are you using?

MySQL

What type of code are you generating?

Go

[p1ass]

I misunderstood the problem.
It was working well adding an option "sql_driver": "github.com/go-sql-driver/mysql" as below playground.

https://play.sqlc.dev/p/9bf65cf825740ae06e585a0a25bc6a48154a660080d8cbb1af1a45d813255b21

[kyleconroy]

As you discovered, you need to setthe sql_driver configuration option. We'll update the docs to make this clearer.