Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!
Most new programming languages (such as Rust, Go, Kotlin, Scala, etc.) support functional programming style and have clear distinguishment on mutable vs immutable variables. So, is functional programming superior to imperative …
Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!
The issue can be fix by stripping null characters using the following command.
tr -d '\000' < filein > fileout
Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!
Enum is the preferred way to constrcut a sum type of several types (which does not implemente the same trait).
The Rust crate
either
provides an enum Either (with variants Left …
Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!
This post collects some typical pure Python errors in PySpark applications.
object has no attribute
Fix the attribute name.
No such file or directory
Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!
Since a Spark DataFrame is immutable, you cannot update or delete records from a physical table (e.g., a Hive table) directly using Spark DataFrame/SQL API. However …
Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!
TypeError: withReplacement (optional), fraction (required) and seed (optional) should be a bool, float and number; however, got [
].
An integer number (e.g., 1) is passed to the fraction parameter …