SaintBacchus commented on code in PR #16055:
URL: https://github.com/apache/doris/pull/16055#discussion_r1091350517
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be/src/vec/exec/format/csv/csv_reader.cpp:
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@@ -88,14 +88,18 @@ CsvReader::~CsvReader() = default;
Status CsvReader::init_reader(bool is_load) {
// set the skip lines and start offset
int64_t start_offset = _range.start_offset;
- if (start_offset == 0 && _params.__isset.file_attributes &&
- _params.file_attributes.__isset.header_type &&
- _params.file_attributes.header_type.size() > 0) {
- std::string header_type =
to_lower(_params.file_attributes.header_type);
- if (header_type == BeConsts::CSV_WITH_NAMES) {
- _skip_lines = 1;
- } else if (header_type == BeConsts::CSV_WITH_NAMES_AND_TYPES) {
- _skip_lines = 2;
+ if (start_offset == 0) {
+ // check header typer first
+ if (_params.__isset.file_attributes &&
_params.file_attributes.__isset.header_type &&
+ _params.file_attributes.header_type.size() > 0) {
+ std::string header_type =
to_lower(_params.file_attributes.header_type);
+ if (header_type == BeConsts::CSV_WITH_NAMES) {
+ _skip_lines = 1;
+ } else if (header_type == BeConsts::CSV_WITH_NAMES_AND_TYPES) {
+ _skip_lines = 2;
+ }
+ } else if (_params.file_attributes.__isset.skip_lines) {
Review Comment:
No need to check `_params.__isset.file_attributes` in my PR since it's will
alwasy be set in fe code.
But for the compatibility, I think it's better to check for any optional
field in the thrift.
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