Joining Tables In SparkR

Kevin Feasel

2017-06-13

R, Spark

WenSui Liu has a script to join tables together in SparkR:

# INNER JOIN
showDF(merge(sum1, sum2, by.x = "month1", by.y = "month2", all = FALSE))
showDF(join(sum1, sum2, sum1$month1 == sum2$month2, "inner"))
#+------+-------+------+-------+
#|month1|min_dep|month2|max_dep|
#+------+-------+------+-------+
#|     3|    -25|     3|    911|
#|     2|    -33|     2|    853|
#+------+-------+------+-------+

There’s no commentary, so it’s all script all the time.  H/T R-bloggers

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