Show all distinct values per column in dataframe
Problem Statement:
I want to see all the distinct values per column for my entire table, but a SQL query with a collect_set() on every column is not dynamic and too long to write.
Use this code to show the output below:
%python
from pyspark.sql.functions import col, collect_set
distincts = df.agg(*(collect_set(col(c)).alias(c) for c in df.columns))
distincts.display()