milenkovicm commented on code in PR #24826:
URL: https://github.com/apache/datafusion/pull/24826#discussion_r3898314212
##########
datafusion/proto/src/physical_plan/mod.rs:
##########
@@ -2058,6 +2078,146 @@ impl PhysicalExtensionCodec for
ComposedPhysicalExtensionCodec {
}
}
+/// A PhysicalExtensionCodec that tries one of multiple inner codecs until one
works.
+/// The name of the codec that successfully encoded an [`ExecutionPlan`] is
stored in the
+/// encoded payload, and the codec with that exact name will be used for
decoding.
+#[derive(Default, Debug)]
+pub struct ComposedNamedPhysicalExtensionCodec {
+ codecs: HashMap<Cow<'static, str>, Arc<dyn PhysicalExtensionCodec>>,
+}
Review Comment:
If you consider sorted keys, you can implement codec priority as well. I
know strings are more flexible than numbers but they won't remove
synchronisation between orgs and they can be abused with key size
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