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[BugFix] fix element_memory_usage of ArrayColumn (backport #17151) #17154

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Feb 1, 2023
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[BugFix] fix element_memory_usage of ArrayColumn (backport #17151) #17154

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4 changes: 3 additions & 1 deletion be/src/column/array_column.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -451,7 +451,9 @@ bool ArrayColumn::set_null(size_t idx) {

size_t ArrayColumn::element_memory_usage(size_t from, size_t size) const {
DCHECK_LE(from + size, this->size()) << "Range error";
return _elements->element_memory_usage(_offsets->get_data()[from], _offsets->get_data()[from + size]) +
size_t start_offset = _offsets->get_data()[from];
size_t elements_num = _offsets->get_data()[from + size] - start_offset;
return _elements->element_memory_usage(start_offset, elements_num) +
_offsets->Column::element_memory_usage(from, size);
}

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