Random Sampling in Google BigQuery

Question

I just discovered that the RAND() function, while undocumented, works in BigQuery. I was able to generate a (seemingly) random sample of 10 words from the Shakespeare dataset using:

SELECT word FROM
(SELECT rand() as random,word FROM [publicdata:samples.shakespeare] ORDER BY random)
LIMIT 10

My question is: Are there any disadvantages to using this approach instead of the HASH() method defined in the "Advanced examples" section of the reference manual? https://developers.google.com/bigquery/query-reference

Answer 1

Waitting for answers