vibhatha commented on code in PR #15083:
URL: https://github.com/apache/arrow/pull/15083#discussion_r1063476006
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cpp/src/arrow/compute/api_aggregate.h:
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@@ -186,16 +188,38 @@ class ARROW_EXPORT IndexOptions : public FunctionOptions {
/// \brief Configure a grouped aggregation
struct ARROW_EXPORT Aggregate {
+ Aggregate() = default;
+
+ Aggregate(std::string function, std::shared_ptr<FunctionOptions> options,
+ std::vector<FieldRef> target, std::string name = "")
+ : function(std::move(function)),
+ options(std::move(options)),
+ target(std::move(target)),
+ name(std::move(name)) {}
+
+ Aggregate(std::string function, std::shared_ptr<FunctionOptions> options,
+ FieldRef target, std::string name = "")
+ : Aggregate(std::move(function), std::move(options),
+ /*target=*/std::vector<FieldRef>{std::move(target)},
std::move(name)) {}
+
+ Aggregate(std::string function, FieldRef target, std::string name)
+ : Aggregate(std::move(function), /*options=*/NULLPTR,
+ /*target=*/std::vector<FieldRef>{std::move(target)},
std::move(name)) {}
+
+ Aggregate(std::string function, std::string name)
+ : Aggregate(std::move(function), /*options=*/NULLPTR,
+ /*target=*/std::vector<FieldRef>{}, std::move(name)) {}
+
/// the name of the aggregation function
std::string function;
/// options for the aggregation function
std::shared_ptr<FunctionOptions> options;
- // fields to which aggregations will be applied
- FieldRef target;
+ /// zero or more fields to which aggregations will be applied
+ std::vector<FieldRef> target;
Review Comment:
Let’s keep target.
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