May 2017
Intermediate to advanced
294 pages
7h 33m
English
Content preview from Apache Spark 2.x Cookbook
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The cartesian join
Cartesian join happens when every row of one DataFrame is joined with every row of the other DataFrame. This can explode the number of rows very fast. Two DataFrames, each with a modest 100 K rows, can result in 10 billion rows with a cartesian join.
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