ENH: Add merge type validation on `pandas.merge`#59435

Merged

mroeschke merged 13 commits intopandas-dev:mainfrom

KevsterAmp:add-pandas-merge-how-param-validation

Aug 22, 2024

Commits on Aug 7, 2024

Commits on Aug 8, 2024

move merge type validation to _MergeOperation class
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add tests on merge validation; add asof as valid mergetype
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Merge remote-tracking branch 'upstream/main' into add-pandas-merge-how-param-validation
KevsterAmp
committed

Commits on Aug 11, 2024

Merge branch 'main' into add-pandas-merge-how-param-validation
KevsterAmp
committed