rtpsw commented on code in PR #14043:
URL: https://github.com/apache/arrow/pull/14043#discussion_r979377121
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cpp/src/arrow/compute/exec.h:
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@@ -442,5 +443,44 @@ Result<Datum> CallFunction(const std::string& func_name,
const ExecBatch& batch,
/// @}
+/// \defgroup compute-function-executor One-shot calls to obtain function
executors
+///
+/// @{
+
+/// \brief One-shot executor provider for all types of functions.
+///
+/// Does kernel dispatch and argument checking, while iteration of
ChunkedArray inputs
+/// and wrapping of outputs are deferred to the executor.
+ARROW_EXPORT
+Result<std::shared_ptr<FunctionExecutor>> GetFunctionExecutor(
+ const std::string& func_name, const std::vector<Datum>& args,
Review Comment:
I ended up adding an overload here and leaving `GetFunctionArgumentTypes`
internal.
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