Latu.Result.UDT (latu v0.2.0)

A user-defined type the server sent as a literal, handed back as data.

Spark serialises a UDT literal as a struct whose type names a class rather than field names, so there is nothing to key a map by. Latu.Result.Literal.value/1 returns this instead: the class, and the elements decoded in the order that class defines them. Latu interprets none of them; latu_ml matches on :class for the two spark.ml uses.

:class is the JVM class the type declared, and nil for a Python UDT; the elements decode either way.

Summary

Types

class()

The JVM class the server named, or nil for a Python UDT.

t()

Types

class()

@type class() :: String.t() | nil

The JVM class the server named, or nil for a Python UDT.

t()

@type t() :: %Latu.Result.UDT{class: class(), elements: [term()]}