Merge pull request #4242 from segmentio/spencerattick-patch-4

add info about warehouse snake_casing

Author: forstisabella

src/connections/storage/warehouses/schema.md

@@ -3,7 +3,7 @@ title: Warehouse Schemas
 ---
 
 A **schema** describes the way that the data in a warehouse is organized. Segment stores data in relational schemas, which organize data into the following template:
-`<source>.<collection>.<property>`, for example `segment_engineering.tracks.user_id`, where source refers to the source or project name (segment_engineering), collection refers to the event (tracks), and the property refers to the data being collected (user_id). All schemas convert collection and property names from `CamelCase` to `snake_case`.
+`<source>.<collection>.<property>`, for example `segment_engineering.tracks.user_id`, where source refers to the source or project name (segment_engineering), collection refers to the event (tracks), and the property refers to the data being collected (user_id). All schemas convert collection and property names from `CamelCase` to `snake_case` using the [go-snakecase](https://github.com/segmentio/go-snakecase) package.
 
 > note "Warehouse column creation"
 > **Note:** Segment creates tables for each of your custom events in your warehouse, with columns for each event's custom properties. Segment does not allow unbounded `event` or `property` spaces in your data. Instead of recording events like "Ordered Product 15", use a single property of "Product Number" or similar.