Sam Olds

It's a handy dandy sql feature. Use case: ``` SELECT DISTINCT first_name FROM users; ```

updates with joins failed because the pk column was ambiguous

I've found myself in a situation where I'd like to join on the same table twice. This seems to be the type of thing I'd like to do: http://stackoverflow.com/a/4267979

I imagine the line that reads: > Use these methods with modals to chain focused user experiences together. should link to: https://api.slack.com/block-kit/surfaces/modals instead of https://api.slack.com/block-kit-surfaces/modals