pyspark - How to use AND or OR condition in when in Spark
107 pyspark.sql.functions.when takes a Boolean Column as its condition. When using PySpark, it's often useful to think "Column Expression" when you read "Column". Logical operations on …
PySpark: multiple conditions in when clause - Stack Overflow
Jun 8, 2016 · 39 when in pyspark multiple conditions can be built using & (for and) and | (for or). Note:In pyspark t is important to enclose every expressions within parenthesis () that combine …
How to check if spark dataframe is empty? - Stack Overflow
Sep 22, 2015 · 4 On PySpark, you can also use this bool(df.head(1)) to obtain a True of False value It returns False if the dataframe contains no rows
Rename more than one column using withColumnRenamed
Since pyspark 3.4.0, you can use the withColumnsRenamed() method to rename multiple columns at once. It takes as an input a map of existing column names and the corresponding …
Filtering a Pyspark DataFrame with SQL-like IN clause
Mar 8, 2016 · Filtering a Pyspark DataFrame with SQL-like IN clause Asked 9 years, 9 months ago Modified 3 years, 8 months ago Viewed 123k times
Comparison operator in PySpark (not equal/ !=) - Stack Overflow
Aug 24, 2016 · The selected correct answer does not address the question, and the other answers are all wrong for pyspark. There is no "!=" operator equivalent in pyspark for this …
Pyspark: display a spark data frame in a table format
Pyspark: display a spark data frame in a table format Asked 9 years, 4 months ago Modified 2 years, 4 months ago Viewed 413k times
PySpark: How to fillna values in dataframe for specific columns?
Jul 12, 2017 · PySpark: How to fillna values in dataframe for specific columns? Asked 8 years, 5 months ago Modified 6 years, 8 months ago Viewed 202k times
Running pyspark after pip install pyspark - Stack Overflow
I just faced the same issue, but it turned out that pip install pyspark downloads spark distirbution that works well in local mode. Pip just doesn't set appropriate SPARK_HOME. But when I set …
python - Compare two dataframes Pyspark - Stack Overflow
Feb 18, 2020 · Compare two dataframes Pyspark Asked 5 years, 10 months ago Modified 3 years, 2 months ago Viewed 108k times