adonis0147 commented on code in PR #12293:
URL: https://github.com/apache/doris/pull/12293#discussion_r969430640
##########
be/src/olap/rowset/segment_v2/column_reader.cpp:
##########
@@ -466,6 +486,42 @@ Status ArrayFileColumnIterator::next_batch(size_t* n,
ColumnBlockView* dst, bool
return Status::OK();
}
+Status ArrayFileColumnIterator::_seek_by_offsets(ordinal_t ord) {
+ // using offsets info
+ ordinal_t offset = 0;
+ RETURN_IF_ERROR(_peek_one_offset(&offset));
+ RETURN_IF_ERROR(_item_iterator->seek_to_ordinal(offset));
+ return Status::OK();
+}
+
+Status ArrayFileColumnIterator::seek_to_ordinal(ordinal_t ord) {
+ RETURN_IF_ERROR(_offset_iterator->seek_to_ordinal(ord));
+ if (_array_reader->is_nullable()) {
+ RETURN_IF_ERROR(_null_iterator->seek_to_ordinal(ord));
+ }
+ return _seek_by_offsets(ord);
+}
+
+Status ArrayFileColumnIterator::_caculate_offsets(ssize_t start,
+
vectorized::MutableColumnPtr& offsets,
+ size_t* num_items) {
+ auto& column_offsets =
static_cast<vectorized::ColumnArray::ColumnOffsets&>(*offsets);
+ ordinal_t last_offset = 0;
+ RETURN_IF_ERROR(_peek_one_offset(&last_offset));
+
+ auto& offsets_data = column_offsets.get_data();
+ *num_items = last_offset - offsets_data[start];
Review Comment:
We could just do the cast outside and use the explicit type inside the
function. No duplicate casts.
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