Young Lin

Mammoth seems to omit the `CASE` and `END` keywords: https://github.com/Ff00ff/mammoth/blob/8122afe43425c135a1dd8f0cd22606fb0e0a994d/workspaces/mammoth/src/__tests__/select.test.ts#L893 When I run the query ``` "SELECT foo.id, (WHEN foo.value > $1 THEN $2 ELSE $3) greatness FROM foo" ```...