HappenLee commented on code in PR #44425: URL: https://github.com/apache/doris/pull/44425#discussion_r1855718923
########## be/src/vec/columns/column_string.cpp: ########## @@ -391,8 +402,11 @@ ColumnPtr ColumnStr<T>::permute(const IColumn::Permutation& perm, size_t limit) template <typename T> StringRef ColumnStr<T>::serialize_value_into_arena(size_t n, Arena& arena, char const*& begin) const { - uint32_t string_size(size_at(n)); - uint32_t offset(offset_at(n)); + // https://github.com/apache/doris/pull/10832 + // Use uint32 instead of size_t to reduce agg key's length. + // Size of a line will not exceed 4G, check the size when inserting data into ColumnStr<T>. + auto string_size(cast_set<uint32_t>(size_at(n))); Review Comment: why here need to check, seem only do check in insert is enough -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For additional commands, e-mail: commits-h...@doris.apache.org