Suppose I have a schema that looks like this:
struct Foo {
union {
bar @0 :Void;
baz @1 :UInt64;
# ...
}
# ...
}
Now suppose I want to add information to union member bar, or I want to add
more fields to baz. What options do I have to do this in a forwards- and
backwards-compatible manner?
Would this be the "correct" way to evolve the schema?
struct Foo {
union {
bar :group {
unused @0 :Void;
foo @2 :UInt32;
bar @3 :OtherStruct;
# ...
}
baz :group {
a @1 :UInt64;
b @4 :Text;
# ...
}
# ...
}
# ...
}
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