PySpark Find Maximum Row per Group in DataFrame
To find the maximum row per group in PySpark, you can utilize the window function.…
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April 3, 2021
PySpark Select First Row of Each Group?
In PySpark, you can select the first row of each group using the window function…
April 3, 2021
Spark SQL – Add row number to DataFrame
The row_number() is a window function in Spark SQL that assigns a row number (sequential integer number)…
December 25, 2019
Spark DataFrame Select First Row of Each Group?
In this Spark article, I've explained how to select/get the first row, min (minimum), max…
September 26, 2019