[UPDATE] - added (yet another) explanation on for comprehensions The * method: This returns the default projection - which is how you describe: 'all the columns (or computed values) I am usually interested' in. Your table could have several fields; you only need a subset for your default projection. The default projection must match the type parameters of the table. Let's take it one at a time. Wi
![scala slick method I can not understand so far](https://cdn-ak-scissors.b.st-hatena.com/image/square/98d6f053a97a87156775f60757c60865d0f2c47d/height=288;version=1;width=512/https%3A%2F%2Fcdn.sstatic.net%2FSites%2Fstackoverflow%2FImg%2Fapple-touch-icon%402.png%3Fv%3D73d79a89bded)