Skip to content
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

Jump to bottom

Expand Step create nullmap used wrong datatype ColumnInt8 #375

Open
loneylee opened this issue Mar 23, 2023 · 0 comments
Open

Expand Step create nullmap used wrong datatype ColumnInt8 #375

loneylee opened this issue Mar 23, 2023 · 0 comments

Comments

@loneylee
Copy link

The code in ExpandStep use ColumnInt8 for nullmap, will occurred Bad cast from type DB::ColumnVector<signed char> to DB::ColumnVector<char8_t>

auto null_map = DB::ColumnInt8::create(rows, 1);
auto col = DB::ColumnNullable::create(original_col, std::move(null_map));
cols.push_back(std::move(col));

Use ColumnUInt8 instead.
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees
No one assigned
Labels
None yet
Projects
None yet
Milestone
No milestone
Development

No branches or pull requests
1 participant
@loneylee