COLLECT_LIST support returning empty output columns.#8279

Merged

rapids-bot[bot] merged 3 commits intorapidsai:branch-21.06from mythrocks:gby-collect-empty-list

May 21, 2021

+151-3

Commits on May 18, 2021

COLLECT_* must support returing empty output columns.
mythrocks
committed

Commits on May 20, 2021