amorynan commented on code in PR #28556:
URL: https://github.com/apache/doris/pull/28556#discussion_r1438098261
##########
be/src/vec/functions/function_ip.h:
##########
@@ -348,4 +348,108 @@ class FunctionIPv6NumToString : public IFunction {
}
};
+class FunctionIsIPv4String : public IFunction {
+private:
+ Status execute_type(Block& block, const ColumnWithTypeAndName& argument,
size_t result) const {
+ const ColumnPtr& column = argument.column;
+
+ if (const auto* col_src = typeid_cast<const
ColumnString*>(column.get())) {
+ auto col_res = ColumnInt8::create();
+
+ for (size_t i = 0; i < col_src->size(); ++i) {
+ auto ipv4_str = col_src->get_data_at(i).to_string();
+ if (ipv4_str.size() > IPV4_MAX_TEXT_LENGTH ||
+ !IPv4Value::is_valid_string(ipv4_str)) {
+ col_res->insert_value(0);
+ } else {
+ col_res->insert_value(1);
+ }
+ }
+
+ DCHECK_EQ(col_res->size(), col_src->size());
+
+ block.replace_by_position(
+ result, ColumnNullable::create(std::move(col_res),
+
ColumnUInt8::create(col_src->size(), 0)));
+ return Status::OK();
+ }
+
+ return Status::RuntimeError("Illegal column {} of argument of function
{}",
+ argument.column->get_name(), get_name());
+ }
+
+public:
+ static constexpr auto name = "isipv4string";
+ static FunctionPtr create() { return
std::make_shared<FunctionIsIPv4String>(); }
+
+ String get_name() const override { return name; }
+
+ size_t get_number_of_arguments() const override { return 1; }
+
+ DataTypePtr get_return_type_impl(const DataTypes& arguments) const
override {
+ return make_nullable(std::make_shared<DataTypeInt8>());
+ }
+
+ bool use_default_implementation_for_nulls() const override { return true; }
+
+ Status execute_impl(FunctionContext* context, Block& block, const
ColumnNumbers& arguments,
+ size_t result, size_t input_rows_count) const override
{
+ ColumnWithTypeAndName& argument = block.get_by_position(arguments[0]);
+ DCHECK(argument.type->get_type_id() == TypeIndex::String);
+ return execute_type(block, argument, result);
+ }
+};
+
+class FunctionIsIPv6String : public IFunction {
+private:
+ Status execute_type(Block& block, const ColumnWithTypeAndName& argument,
size_t result) const {
+ const ColumnPtr& column = argument.column;
+
+ if (const auto* col_src = typeid_cast<const
ColumnString*>(column.get())) {
Review Comment:
here if columns is ColumnNullable<ColumnString> ?
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