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b1f8055584
on Windows connecting on a closed port takes about 2 seconds.
You can test with something like this
start := time.Now()
_, err := d.DialContext(context.Background(), "tcp", "127.0.0.1:1")
fmt.Printf("finished, time %s, err: %v\n", time.Since(start), err)
This seems by design
https://groups.google.com/g/comp.os.ms-windows.programmer.win32/c/jV6kRVY3BqM
Generally TestConnectWithFallback takes about 8-9 seconds on Windows.
Increase timeout to avoid random failures under load
pgconn
Package pgconn is a low-level PostgreSQL database driver. It operates at nearly the same level as the C library libpq. It is primarily intended to serve as the foundation for higher level libraries such as https://github.com/jackc/pgx. Applications should handle normal queries with a higher level library and only use pgconn directly when required for low-level access to PostgreSQL functionality.
Example Usage
pgConn, err := pgconn.Connect(context.Background(), os.Getenv("DATABASE_URL"))
if err != nil {
log.Fatalln("pgconn failed to connect:", err)
}
defer pgConn.Close(context.Background())
result := pgConn.ExecParams(context.Background(), "SELECT email FROM users WHERE id=$1", [][]byte{[]byte("123")}, nil, nil, nil)
for result.NextRow() {
fmt.Println("User 123 has email:", string(result.Values()[0]))
}
_, err = result.Close()
if err != nil {
log.Fatalln("failed reading result:", err)
}
Testing
See CONTRIBUTING.md for setup instructions.