Is it useful prepare sql statement for PooledConnection？

[sickHamm]

loop {
    let conn = pool.get().unwrap();
    // if conn is reuse connection, call prepare_cached just return already statment,
    // if conn is new  prepare the statment and return;
    //  Is Right ?
    let stmp = conn.prepare_cached("sql").unwrap();
    stmt.query(&[]).unwrap();
}

[sfackler]

Yep, that's correct. The statement will be prepared once on each of the connections in the pool and reused after that.