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

Fix writing of ORC files with empty rowgroups #13466

Merged
merged 2 commits into from
May 30, 2023
Merged

Fix writing of ORC files with empty rowgroups #13466

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
20ad6e7
update data_ptr for empty rowgroups
vuule May 26, 2023
9be927a
test
vuule May 26, 2023
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
5 changes: 2 additions & 3 deletions cpp/src/io/orc/stripe_enc.cu
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1108,11 +1108,10 @@ __global__ void __launch_bounds__(compact_streams_block_size)
for (uint32_t i = t; i < len; i += blockDim.x) {
dst_ptr[i] = src_ptr[i];
}

__syncthreads();
if (t == 0) { streams[ss.column_id][group].data_ptrs[cid] = dst_ptr; }
dst_ptr += len;
}
if (t == 0) { streams[ss.column_id][group].data_ptrs[cid] = dst_ptr; }
Copy link
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Ah, I see. Outside the length check.

dst_ptr += len;
}
}

Expand Down
18 changes: 18 additions & 0 deletions cpp/tests/io/orc_test.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1788,4 +1788,22 @@ TEST_F(OrcChunkedWriterTest, CompStatsEmptyTable)
expect_compression_stats_empty(stats);
}

TEST_F(OrcWriterTest, EmptyRowGroup)
{
std::vector<int> ints(10000 + 5, -1);
auto mask = cudf::detail::make_counting_transform_iterator(0, [](auto i) { return i >= 10000; });
int32_col col{ints.begin(), ints.end(), mask};
table_view expected({col});

auto filepath = temp_env->get_temp_filepath("OrcEmptyRowGroup.orc");
cudf::io::orc_writer_options out_opts =
cudf::io::orc_writer_options::builder(cudf::io::sink_info{filepath}, expected);
cudf::io::write_orc(out_opts);

cudf::io::orc_reader_options in_opts =
cudf::io::orc_reader_options::builder(cudf::io::source_info{filepath});
auto result = cudf::io::read_orc(in_opts);
CUDF_TEST_EXPECT_TABLES_EQUAL(expected, result.tbl->view());
}

CUDF_TEST_PROGRAM_MAIN()