goodybag/mongo-sql — pull request #96 by jrf0110 (2014-04-13 18:19:57+00:00)
Title: Union, intersect, except

```javascript
{
type: 'union'
, queries: [
{
type: 'intersect'
, all: true
, queries: [
{ type: 'select' /* ... */ }
]
}
]
}
```