pyspark - How to use AND or OR condition in when in Spark - Stack …
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 …
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 solution.
Show distinct column values in pyspark dataframe - Stack Overflow
With pyspark dataframe, how do you do the equivalent of Pandas df['col'].unique(). I want to list out all the unique values in a pyspark dataframe column. Not the SQL type way (registertemplate the...
cannot resolve column due to data type mismatch PySpark
Mar 12, 2020 · cannot resolve column due to data type mismatch PySpark Asked 5 years, 9 months ago Modified 4 years, 9 months ago Viewed 39k times
PySpark: multiple conditions in when clause - Stack Overflow
Jun 8, 2016 · Very helpful observation 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 …
python - PySpark: "Exception: Java gateway process exited before ...
I'm trying to run PySpark on my MacBook Air. When I try starting it up, I get the error: Exception: Java gateway process exited before sending the driver its port number when sc = SparkContext() is
How to find count of Null and Nan values for each column in a PySpark ...
Jun 19, 2017 · How to find count of Null and Nan values for each column in a PySpark dataframe efficiently? Asked 8 years, 6 months ago Modified 2 years, 8 months ago Viewed 291k times
pyspark - Adding a dataframe to an existing delta table throws DELTA ...
Jun 9, 2024 · Fix Issue was due to mismatched data types. Explicitly declaring schema type resolved the issue. schema = StructType([ StructField("_id", StringType(), True), StructField("
pyspark
Jan 2, 2023 · I am very new to pyspark and getting below error, even if drop all date related columns or selecting only one column. Date format stored in my data frame like "". Can anyone …
How do I replace a string value with a NULL in PySpark?
Mar 7, 2023 · I want to do something like this: df.replace('empty-value', None, 'NAME') Basically, I want to replace some value with NULL, but it does not accept None as an argument. How can I do this?