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Re: Help optimising Spark SQL query

Have you test this on a smaller set to verify that the query is correct? On Mon, Jun 22, 2015 at 2:59 PM, ayan guha wrote: > You may also want to change count(*) to specific column. > On 23 Jun 2015 01:29, "James Aley" wrote: > >> Hello, >> >> A colleague of mine ran the following Spark SQL que