Hello Apache Supporters and Enthusiasts
This is a final reminder that our Apache EU Roadshow will be held in
Berlin next week on 13th and 14th June 2018. We will have 28 different
sessions running over 2 days that cover some great topics. So if you are
interested in Microservices, Internet of
The default for a union is interpreted as the type of its first branch.
https://avro.apache.org/docs/current/spec.html#Unions
Thus, in your example, if you want a nullable byte array, place "null"
first in the union, e.g.:
{"type":"record","name":"hello","fields":[{"name":"id","type":["null",
"b
