Skip to content

GH-34474: [C++] Detect and raise an error if a join will need too much key data #35087

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
jorisvandenbossche merged 1 commit into from
Apr 13, 2023
Merged

GH-34474: [C++] Detect and raise an error if a join will need too much key data #35087

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
6 changes: 6 additions & 0 deletions cpp/src/arrow/acero/swiss_join.cc
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -473,6 +473,12 @@ Status RowArrayMerge::PrepareForMerge(RowArray* target,
(*first_target_row_id)[sources.size()] = num_rows;
}

if (num_bytes > std::numeric_limits<uint32_t>::max()) {
return Status::Invalid(
"There are more than 2^32 bytes of key data. Acero cannot "
"process a join of this magnitude");
}

// Allocate target memory
//
target->rows_.Clean();
Expand Down