Match pandas merge/join dtype, index and error semantics - #23060

Merged

rapids-bot[bot] merged 22 commits into

NVIDIA:mainfrom

galipremsagar:merge-pandas-semantics

Jul 15, 2026

Commits on Jul 1, 2026

Match pandas suffix handling in merge (None/non-string suffixes, set/dict TypeError)
galipremsagar
committed
7142676
Match pandas merge semantics: suffix-dup MergeError, index-param validation, numeric-vs-string raise, extension-dtype key preservation
galipremsagar
committed
9b6a56a
Match pandas merge: decategorize non-matching categorical keys, keep empty-key dtype, ungate to cudf-classic
galipremsagar
committed
2a8fd13
Match pandas merge index semantics: flag-based index selection, key coalescing, and numpy-int->float64 upcast on unmatched rows
galipremsagar
committed
22da52f
Keep result index when the same index level is used as key on both sides (on=)
galipremsagar
committed
e5e3bb2
Match pandas key dtype: keep own dtype for differently-named keys and left dtype for inner/left same-name keys
galipremsagar
committed
bb77051
Drop now-passing merge xfail entries; tidy imports/formatting
galipremsagar
committed
15df051
Add cudf-classic tests for pandas-matching merge semantics
galipremsagar
committed
2dd7ab3

Commits on Jul 2, 2026

Commits on Jul 3, 2026

fix
galipremsagar
committed
ca8274e
Merge branch 'main' into merge-pandas-semantics
galipremsagar
authored
66d1d18

Commits on Jul 14, 2026

Commits on Jul 15, 2026

Merge remote-tracking branch 'upstream/main' into merge-pandas-semantics
galipremsagar
committed
c9a24c7