Needing help installing Pyspark on Windows 10
I am trying to install Pyspark on my laptop and went through all the steps as per
https://medium.com/@deepaksrawat1906/a-step-by-step-guide-to-installing-pyspark-on-windows-3589f0139a30
Getting Error While Running Spark-Shell Program
I am trying to create a Spark Shell Program, but getting error while running it.
Error while trying to show the results using pyspark show function
I am trying to show my results in pyspark.
I am using spark 3.5.1 and pyspark 3.5.1 with java 8 installed and everything is well set.
Some answers suggesting adding this :
How to rename the array of StructType fields in PyStack?
I need to read a JSON in French language and want to convert it English column names.
Configure PySpark to use Sunday as Start of Week
According to the pyspark docs for weekOfYear()
, Monday is considered to be the start of the week. However, dayOfWeek()
uses Sunday as the start date. I do a lot of reporting on previous periods where I’m calculating change week over week but also for the same period last year. This becomes problematic because I am reliant on both weekOfYear()
and dayOfWeek()
to correctly calculate these time periods but in order to properly calculate, they both need to start on the same day (which in my case, should be Sunday). Does anyone know of a way to change a config or something in pyspark so that it will consider Sunday as the start of the week for ALL datetime calculations (including weekOfYear()
)? I really don’t want to have to write a custom function to do this.
Make the code dynamic. Currently the column names and datatypes are set fix in the code
is there a way to set colum names and datatypes in a more dynamic way? So if i wanna reuse the code with a different table i dont have to change the whole code?
spark pivot performance and performance optimization
I have a table like