Why is Executor only implemented for references to connections and connection pools, and not the owned types?

[kockamatyas]

This example shows how difficult it is to pass an executor as a function argument:

async fn f<'e, E>(executor: E)
where
    E: sqlx::Executor<'e, Database = sqlx::Postgres>,
{
    sqlx::query!("SELECT * FROM table1")
        .fetch_all(executor)
        .await
        .unwrap();

    sqlx::query!("SELECT * FROM table2")
        .fetch_all(executor)
        .await
        .unwrap();
}

This does not compile because the first query consumes the executor.

[kockamatyas]

Closed as a duplicate of #1136