Closing an operator gap
Missing string aggregation blocked a full industry benchmark suite, so I added it to the GPU execution path.
GPU DATABASE INTERNALS
NVIDIA Sirius DB
I added the libcudf string aggregation Sirius was missing, then fixed the GPU correctness bugs the benchmark suite exposed.
1K+ GitHub stars
2 PRs merged into the query engine
Full industry benchmark suite unblocked
6× avg. hot-run speedup vs. DuckDB on JOB
Correctness before speed
I traced failures through the aggregation and numeric execution paths and fixed them.
Upstream contribution
Reviewed and merged by an NVIDIA maintainer.