Joining Multiple Spark Dataframes

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I have 'n' Spark Data-frames like this:

list(d1,d2,d3,d4,.....dn)

How can i join these 'n' Data-frames together?
Mar 26, 2018 in Big Data Hadoop by Ashish
• 2,630 points
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1 answer to this question.

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You can run the below code to join those 'n' spark data-frames:

List(df1,df2,df3,dfN).reduce((a, b) => a.join(b, joinCondition))
answered Mar 26, 2018 by Bharani
• 4,550 points

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