amorynan commented on code in PR #28556:
URL: https://github.com/apache/doris/pull/28556#discussion_r1442541249
##########
be/src/vec/functions/function_ip.h:
##########
@@ -348,4 +348,138 @@ 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* nullable_src = typeid_cast<const
ColumnNullable*>(column.get())) {
+ size_t col_size = nullable_src->size();
+ auto col_res = ColumnUInt8::create(col_size, 0);
+ auto null_map = ColumnUInt8::create(col_size, 0);
+
+ for (size_t i = 0; i < col_size; ++i) {
+ if (nullable_src->is_null_at(i)) {
+ null_map->get_data()[i] = 1;
+ } else {
+ StringRef ipv4_str = nullable_src->get_data_at(i);
+ if (IPv4Value::is_valid_string(ipv4_str.data,
ipv4_str.size)) {
Review Comment:
why not deal with invalid string ?
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