OrientDB如何获取（分组的）关系数据作为JSON而不是对象

Question

I'm pretty new to OrientDB and tried to find an answer online or in the docs but can not find it.

If i'm writing a MATCH query and returning grouped results I can only get the Id's of the records.

My Query:

MATCH {class: SKU, as: sku}-categorizedIn->{class:Category, as: subcat}<-hasSubcategory-{class: Category, as: cat, where: (name='Drinks')}
RETURN subcat.name, CONCAT(sku)
GROUP BY subcat.name

This returns something like: subcat.name

concat    |   (sku, ',')
--------------------------------
Wine      |   #46:0,#50:0,#49:0
Beer      |   #48:0,#47:0,#46:1 

How can i get a combined result that contains all the data like:

concat    |   (sku, ',')
--------------------------------
Wine      |   [{_id: "#46:0", name: "Merlot" },{_id: "#50:0", name: "Pinot" },{_id: "#49:0", name: "Shiraz" }]
Beer      |   [{_id: "#48:0", name: "Budweiser light" },{_id: "#47:0", name: "Stella Artroix" },{_id: "#46:1", name: "Heineken" }]

Thanks in advance!

Answer 1

You can use the .toJSON() method to get all the data you need:

Syntax: <value>.toJSON([<format>])

Source: SQL Methods > .toJSON()