PySpark Join Types | Join Two DataFrames

Post author:NNK
Post category:PySpark

PySpark Join is used to combine two DataFrames and by chaining these you can join multiple DataFrames; it supports all basic join type operations available in traditional SQL like INNER, LEFT OUTER, RIGHT OUTER, LEFT ANTI, LEFT SEMI, CROSS, SELF JOIN. PySpark Joins are wider transformations that involve data shuffling across the network. PySpark SQL Joins comes…

Spark SQL Join Types with examples

Post author:NNK
Post category:Apache Spark

Spark DataFrame supports all basic SQL Join Types like INNER, LEFT OUTER, RIGHT OUTER, LEFT ANTI, LEFT SEMI, CROSS, SELF JOIN. Spark SQL Joins are wider transformations that result in data shuffling over the network hence they have huge performance issues when not designed with care. On the other hand…