morningman commented on a change in pull request #5462:
URL: https://github.com/apache/incubator-doris/pull/5462#discussion_r587521289
##########
File path: be/src/exec/broker_scanner.cpp
##########
@@ -292,16 +304,24 @@ void BrokerScanner::close() {
}
void BrokerScanner::split_line(const Slice& line, std::vector<Slice>* values) {
- // line-begin char and line-end char are considered to be 'delimiter'
const char* value = line.data;
- const char* ptr = line.data;
- for (size_t i = 0; i < line.size; ++i, ++ptr) {
- if (*ptr == _value_separator) {
- values->emplace_back(value, ptr - value);
- value = ptr + 1;
+ size_t i = 0;
+ // TODO improve the performance
+ while (i < line.size) {
+ if (i + _value_separator.size() <= line.size) {
Review comment:
Does `_value_separator.size()` equals to `_value_separator_length`?
##########
File path: be/src/exec/broker_scanner.cpp
##########
@@ -49,16 +49,28 @@ BrokerScanner::BrokerScanner(RuntimeState* state,
RuntimeProfile* profile,
: BaseScanner(state, profile, params, pre_filter_ctxs, counter),
_ranges(ranges),
_broker_addresses(broker_addresses),
- // _splittable(params.splittable),
- _value_separator(static_cast<char>(params.column_separator)),
- _line_delimiter(static_cast<char>(params.line_delimiter)),
_cur_file_reader(nullptr),
_cur_line_reader(nullptr),
_cur_decompressor(nullptr),
_next_range(0),
_cur_line_reader_eof(false),
_scanner_eof(false),
- _skip_next_line(false) {}
+ _skip_next_line(false) {
+ if (params.__isset.column_separator_length &&
params.column_separator_length > 1) {
+ _value_separator = params.column_separator_str;
+ _value_separator_length = params.column_separator_length;
+ } else {
+ _value_separator.push_back(static_cast<char>(params.column_separator));
+ _value_separator_length = 1;
+ }
+ if (params.__isset.line_delimiter_length && params.line_delimiter_length >
1) {
+ _line_delimiter = params.line_delimiter_str;
+ _line_delimiter_length = params.line_delimiter_length;
+ } else {
+ _line_delimiter.push_back(static_cast<char>(params.line_delimiter));
+ _line_delimiter_length = 1;
Review comment:
`_line_delimiter_length` seams useless.
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