Vitalii Kotliarenko questions

Vitalii Kotliarenko answers

• how can concatenate two string columns in one column in spark python [duplicate]
• Error while saving data to elasticsearch from spark - saveToEs
• Is there a range data structure in Scala?
• sbt: cyclic dependence between modules?
• Why inconsistent results using subtraction in reduce?
• Reading multiple json files from Spark
• Spark explode nested JSON with Array in Scala
• Method to get number of cores for a executor on a task node?
• Set default env variable for test configuration in sbt
• Scala Spark : How to create a RDD from a list of string and convert to DataFrame