@Override public UserDefinedType getCqlType() {
    return (UserDefinedType) super.getCqlType();
  }
For better performance, this relies on ordinals instead of name lookups.

<p>0 = "ts" = {@link Annotation#timestamp()}
<p>0 = "v" = {@link Annotation#value()}
zipkin-storage/cassandra/src/main/java/zipkin2/storage/cassandra/AnnotationCodec.java