aosq

Is this gem abandoned? Would really like to get this in. Adding a redshift columns is broken without this update.

HSL already has [`Dict\group_by`](https://docs.hhvm.com/hsl/reference/function/HH.Lib.Dict.group_by), `Dict\pull` could become`Dict\index_by`? Coming over from ActiveRecord, [`Enumerable#index_by`](https://apidock.com/rails/Enumerable/index_by) was easy to remember because of its similarities to [`Enumerable#group_by`](https://apidock.com/rails/Enumerable/group_by).

> Also, we have some inconsistency with the way we nest expression items Started looking into this and you're right that the inconsistency comes from `$.heredoc`. I originally wrote the...