liaoxin01 commented on code in PR #16832:
URL: https://github.com/apache/doris/pull/16832#discussion_r1109268659
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be/src/olap/rowset/segment_v2/segment_writer.cpp:
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@@ -389,6 +388,22 @@ std::string SegmentWriter::_full_encode_keys(
return encoded_keys;
}
+void SegmentWriter::_encode_seq_column(const
vectorized::IOlapColumnDataAccessor* seq_column,
+ size_t pos, string* encoded_keys) {
+ auto field = seq_column->get_data_at(pos);
+ // To facilitate the use of the primary key index, encode the seq column
+ // to the minimum value of the corresponding length when the seq column
+ // is null
+ if (UNLIKELY(!field)) {
+ encoded_keys->push_back(KEY_NULL_FIRST_MARKER);
+ size_t seq_col_length =
_tablet_schema->column(_tablet_schema->sequence_col_idx()).length();
+ encoded_keys->append(seq_col_length, KEY_MINIMAL_MARKER);
+ return;
+ }
+ encoded_keys->push_back(KEY_NORMAL_MARKER);
Review Comment:
check encoded_keys? encoded_keys is an output parameter, the caller will
ensure the validity.
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