cambyzju commented on code in PR #12321:
URL: https://github.com/apache/doris/pull/12321#discussion_r963213058
##########
be/src/vec/functions/function_string.h:
##########
@@ -494,6 +494,51 @@ class FunctionStringConcat : public IFunction {
}
};
+class FunctionStringElt : public IFunction {
+public:
+ static constexpr auto name = "elt";
+ static FunctionPtr create() { return
std::make_shared<FunctionStringElt>(); }
+ String get_name() const override { return name; }
+ size_t get_number_of_arguments() const override { return 0; }
+ bool is_variadic() const override { return true; }
+
+ DataTypePtr get_return_type_impl(const DataTypes& arguments) const
override {
+ return std::make_shared<DataTypeString>();
Review Comment:
need check arguments size >= 2?
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