ahsanabbas123 commented on code in PR #48792:
URL: https://github.com/apache/arrow/pull/48792#discussion_r2676139782
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cpp/src/arrow/engine/substrait/expression_internal.cc:
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@@ -1249,42 +1249,52 @@ Result<std::unique_ptr<substrait::Expression>>
MakeListElementReference(
Result<std::unique_ptr<substrait::Expression::ScalarFunction>>
EncodeSubstraitCall(
const SubstraitCall& call, ExtensionSet* ext_set,
const ConversionOptions& conversion_options) {
+
+ auto scalar_fn =
+ std::make_unique<substrait::Expression::ScalarFunction>();
+
+ // Encode function ONCE per scalar function (FIX)
Review Comment:
Can you please explain how does constructing the scalar function before
encoding help avoid the repeated URIs?
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