ENH: adds columnwise fillna support#62393

Merged

mroeschke merged 2 commits intopandas-dev:mainfrom

a18rhodes:fillna-colwise-4515

Oct 4, 2025

Commits on Oct 4, 2025

Addresses https://github.com/pandas-dev/pandas/issues/4514 - adds columnwise fillna.
a18rhodes
committed
update to use can_hold_element instead of naive exact dtype matching
a18rhodes
committed