PERF: regression in datetimelike symmetric_difference set op #42239
Labels
Performance
Memory or execution speed performance
Regression
Functionality that used to work in a prior pandas version
Milestone
This seems to have caused several performance regressions, see https://pandas.pydata.org/speed/pandas/#regressions?sort=1&dir=desc (the ones for commit "bf72b70b")
Originally posted by @jorisvandenbossche in #41833 (comment)
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