zclllyybb commented on code in PR #34258:
URL: https://github.com/apache/doris/pull/34258#discussion_r1590318427
##########
be/src/vec/functions/function_string.h:
##########
@@ -356,6 +357,174 @@ class FunctionStrcmp : public IFunction {
}
};
+class FunctionAutoPartitionName : public IFunction {
+public:
+ static constexpr auto name = "auto_partition_name";
+ static FunctionPtr create() { return
std::make_shared<FunctionAutoPartitionName>(); }
+ 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>();
+ }
+
+ Status execute_impl(FunctionContext* context, Block& block, const
ColumnNumbers& arguments,
+ size_t result, size_t input_rows_count) const override
{
+ DCHECK_GE(arguments.size(), 2);
+
+ int argument_size = arguments.size();
+ std::vector<const ColumnString::Chars*> chars_list(argument_size);
+
+ for (int i = 0; i < argument_size; ++i) {
+ const auto& [col, is_const] =
+
unpack_if_const(block.get_by_position(arguments[i]).column);
+
+ const auto* col_str = assert_cast<const ColumnString*>(col.get());
+ chars_list[i] = &col_str->get_chars();
+ }
+
+ auto res = ColumnString::create();
+ auto& res_data = res->get_chars();
+ auto& res_offset = res->get_offsets();
+ res_offset.resize(input_rows_count);
+
+ auto compare_str = [&](const char* str1, const char* str2, size_t n) {
+ for (int i = 0; i < n; i++) {
+ if (str1[i] != str2[i]) {
+ return 0;
+ }
+ }
+ return 1;
+ };
+ if (compare_str(chars_list[0]->raw_data(), "list", 4)) {
+ std::string res_p = "p";
+ for (int i = 0; i < input_rows_count; i++) {
+ int curr_size = 0;
+ for (int j = 1; j < argument_size; j++) {
+ const std::string
string_to_unicode(chars_list[j]->raw_data(),
+ chars_list[j]->size());
+ auto unicode_to_string =
string_to_u16string(string_to_unicode);
+ res_p += StringToUnicode(unicode_to_string) +
+ std::to_string(unicode_to_string.size());
+ }
+ int len = res_p.size();
+ res_data.resize(len + curr_size);
+ std::memcpy(&res_data[res_offset[i - 1]], res_p.c_str(), len);
+ res_offset[i] = res_offset[i - 1] + len;
+ }
+
+ block.get_by_position(result).column = std::move(res);
+ return Status::OK();
+ } else if (compare_str(chars_list[0]->raw_data(), "range", 5)) {
+ if (argument_size != 3) {
+ return Status::Error<ErrorCode::INVALID_ARGUMENT>(
+ "partition type is range, the argument of size must be
3");
+ }
+ const auto& [col_partition_type, is_const_col_partition_type] =
+
unpack_if_const(block.get_by_position(arguments[1]).column);
+
+ const auto* col_str_partition_type_str =
+ assert_cast<const ColumnString*>(col_partition_type.get());
+
+ std::string to_split_s(chars_list[2]->raw_data(),
chars_list[2]->size());
+ std::vector<std::string> str_v;
+ if (to_split_s.size() == input_rows_count * 19) {
+ for (int i = 0; i < to_split_s.size(); i += 19) {
+ auto vec_res = split(to_split_s.substr(i, 10), "-");
+ for (const auto& s : vec_res) {
+ str_v.emplace_back(s);
+ }
+ }
+ } else {
+ for (int i = 0; i < to_split_s.size(); i += 10) {
+ auto vec_res = split(to_split_s.substr(i, 10), "-");
+ for (const auto& s : vec_res) {
+ str_v.emplace_back(s);
+ }
+ }
+ }
+ res_data.resize(15 * input_rows_count);
+ for (int i = 0; i < input_rows_count; i++) {
+ int curr_len = 1;
+
+ res_data[res_offset[i - 1]] = 'p';
+ if
(compare_str(col_str_partition_type_str->get_chars().raw_data(), "day", 3)) {
+ for (int j = i * 3; j < i * 3 + 3; j++) {
+ std::memcpy(&res_data[res_offset[i - 1]] + curr_len,
str_v[j].c_str(),
+ str_v[j].size());
+ curr_len += str_v[j].size();
+ }
+ } else if
(compare_str(col_str_partition_type_str->get_chars().raw_data(), "month",
+ 5)) {
+ for (int j = i * 3; j < i * 3 + 2; j++) {
+ std::memcpy(&res_data[res_offset[i - 1]] + curr_len,
str_v[j].c_str(),
+ str_v[j].size());
+ curr_len += str_v[j].size();
+ }
+ std::memcpy(&res_data[res_offset[i - 1]] + curr_len, "01",
2);
+ curr_len += 2;
+ } else if
(compare_str(col_str_partition_type_str->get_chars().raw_data(), "year",
+ 4)) {
+ std::memcpy(&res_data[res_offset[i - 1]] + curr_len,
str_v[i * 3].c_str(),
+ str_v[i * 3].size());
+ curr_len += str_v[i * 3].size();
+ std::memcpy(&res_data[res_offset[i - 1]] + curr_len,
"0101", 4);
+ curr_len += 4;
+ } else {
+ return Status::Error<ErrorCode::INTERNAL_ERROR>(
Review Comment:
use `Status::INVALID_ARGUMENT` instead
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