Pushkr questions

Pushkr answers

• How to calculate percentage over a dataframe
• NiFi EL How do I get a substring "up to" certain length?
• Python: How to convert Pyspark column to date type if there are null values
• Filtering pyspark dataframe if text column includes words in specified list
• How to use PySpark to load a rolling window from daily files?
• cleaning data with dropna in Pyspark
• Pyspark - passing list/tuple to toDF function
• PySpark: modify column values when another column value satisfies a condition
• How to create dataframe from list in Spark SQL?
• Pyspark JSON object or file to RDD