[GitHub] [arrow] sanjibansg commented on a diff in pull request #13181: ARROW-15534: [C++] Add convenience function to substrait consumer to create plan instead of declaration

[GitBox <gi...@apache.org>]

sanjibansg commented on code in PR #13181:
URL: https://github.com/apache/arrow/pull/13181#discussion_r877169225


##########
cpp/src/arrow/engine/substrait/serde.cc:
##########
@@ -86,6 +86,20 @@ Result<std::vector<compute::Declaration>> DeserializePlan(
   return sink_decls;
 }
 
+Result<compute::ExecPlan> DeserializePlan(const Buffer& buf,
+                                          const ConsumerFactory& consumer_factory,
+                                          ExtensionSet* ext_set_out) {
+  ARROW_ASSIGN_OR_RAISE(auto declarations,
+                        DeserializePlans(buf, consumer_factory, ext_set_out));
+  if (declarations.size() > 1) {
+    return Status::Invalid("Substrait plan cannot have multiple root relations");

Review Comment:
   Yes, right, made the change, thanks!



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