CODEWITHSUNDEEP
azureazure-cosmosdb
Lewis
Lewis

Reputation: 656

How to use WHERE COUNT in Cosmos DB

Is it possible to do a query such as...

SELECT COUNT(UniqueLastNames)
FROM (
SELECT COUNT(c)
FROM c
WHERE COUNT(c.lastName) > 2 AND COUNT(c.lastName) < 5 GROUP BY c.lastName
) AS UniqueLastNames

What it should do is give me all the people whose last name appears more than twice, but less than 5.

Problem is, cosmos won't let you do a function in a WHERE statement it says, any other way around it?

Upvotes: 0

Views: 4715

Answers (1)

Lewis
Lewis

Reputation: 656

Got it to work with the following code...

SELECT COUNT(UniqueLastNames)
FROM (SELECT COUNT(1) AS lastName FROM c GROUP BY c.lastName) AS 
UniqueLastNames WHERE UniqueEmails.lastName > 2 AND UniqueEmails.lastName < 
5

... though it's so expensive on RUs at 137.86 RUs per request.

Upvotes: 3

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