Comparing ranking functions in BigQuery
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BigQuery Window Functions
Part 3 of 13
A focused guide to window functions in BigQuery — cumulative sums, rolling averages, ranking functions, named windows, RANGE frames, and more.
De-duplicating with ROW_NUMBER vs ARRAY_AGG
What function do you use to explicitly de-duplicate in BigQuery?I normally use ROW_NUMBER(), but I've recently encountered a really interesting blog post suggesting ARRAY_AGG might be more performant for the task. The explanation given is that the OR...
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