Trying to pass an Array[MyPojo] to UDF gets Schema for type Dataset[Row] is not supported

I’m trying to group rows by identifier and apply some filtering into the resulting array within the same DataFrame.

Trying to pass an Array[MyPojo] to UDF gets Schema for type Dataset[Row] is not supported

I’m trying to group rows by identifier and apply some filtering into the resulting array within the same DataFrame.

Scala spark subtract 2 rdd’s by a common field

I am new to scale and spark
need help in subtracting one rdd from another by ignoring a field

spark – job cancelled while doing json schema inference

I have a spark job which first is supposed to infer the schema then do the real “job”. To infer the schema we use

Spark session thread safety

I’v read that spark session context is thread-safe but not in all cases.

Empty field in json file thorws org.apache.spark.sql.AnalysisException: [FIELD_NOT_FOUND] No such struct field

Background

Dealing with a Large Number of Columns using Spark’s .pivot() Function

Recently, I am struggling with performance tuning of the pivot function in Spark.

Scala : Read csv , match key and return value

How to get value from Scala map:

Scala : Read csv , match key and return value

How to get value from Scala map:

Scala : Read csv , match key and return value

How to get value from Scala map: