Count Distinct field query

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1

Hi
I would like to find out how I can do a count distinct on a field where some other field match the condition.
In SQL I do run the below code and I do get the result I want.

SELECT COUNT(Distinct RevisionNumber)
FROM table 1
WHERE Week = 1711

2

What you want is the cardinality aggregation. See this page in our definitive guide for another example

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