Raphael Roth

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Raphael Roth has asked 77 questions and find answers to 97 problems.

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Raphael Roth questions

JNA with Fortran assumed size array
import implicit conversions without instance of SparkSession
concise way to filter and map a scala sequence of tuples containing options
Strange behavior in a code to test a thread-safe singleton
Count calls of UDF in Spark
Memory issues while loading two native libraries containing same symbols
Spring data xml configuration schema validation error
Unable to filter DataFrame using Window function in Spark
How to (equally) partition array-data in spark dataframe
How to refer to predefined database entries in source code

Raphael Roth answers

How to make key colour black in Gnuplot
What is the Difference between Broadcast hash join and Broadcast Nested loop join in Spark?
Access to WrappedArray elements
multiple insert into a table using Apache Spark
Gnuplot get value of a particular data in a datafile? (with or without using stats)
How to explode StructType to rows from json dataframe in Spark rather than to columns
Visualizing a 2d random walk in python
spark dataframe explode function error
Why filter does not preserve partitioning?
Spark Struct structfield names getting changed in UDF